He was once a prison inmate alongside Archie at Leopold and Loeb Juvenile Detention Center, both of whom, along with many others, were entangled in Warden Norton's illegal fight club. Munroe was Norton's most cherished fighter, that was until Archie arrived and took his place. After he suddenly disappeared following a riot in the yard, Mad Dog returned to help Archie escape.
After Munroe helped Archie escape, he was taken back to Leopold and Loeb, where he remained for several more months, until calling Archie to tell him that the center is closing and they were all being relocated to Hiram Lodge's new prison on the Southside. Fortunately, with the help of Veronica, Archie manages to get Munroe and the other inmates pardoned after blackmailing the Governor. And so, Munroe returned to Riverdale, where he found his grandmother and little brother and later agreed to fight for Elio Grande in exchange for payment and housing.
It's the last day of summer vacation. While sparring at the gym, Archie suggests that Mad Dog enroll at Riverdale High, especially since his younger brother will be a freshman. Mad Dog is reluctant but eventually agrees.
As Coach Clayton runs the play with Reggie, Archie asks if there’s room for Mad Dog on the Bulldogs, who now prefers to go by his first name of Munroe. Despite having a full roster, Coach Clayton agrees to give him a chance.
Archie leads the offensive line at Bulldogs' practice. Reggie is on defense, covering Mad Dog, and his dad is cheering him on. Mad Dog gets the better of Reggie and scores. Marty Mantle, Reggie’s dad, calls him over and scolds him.
Reggie picks a fight with Mad Dog in the locker room after practice. He inquires about Mad Dog’s time in juvie. Mad Dog pushes Reggie, but Archie is there to see that the situation escalates no further. Archie asks Reggie what his problem is. Reggie replies that he’s been captain of the Bulldogs since sophomore year, and he’s concerned that Mad Dog has come to take his position.
During Bulldogs' practice, Archie's positioned as a quarterback. He throws the football to Reggie, who loses the ball after being tackled by Mad Dog. Coach Clayton calls an end to the practice. Reggie is once again scolded by his father for his poor performance. He even threatens Reggie, forcing Archie to intervene, who even accuses Marty of hitting Reggie. However, Reggie doesn’t want Archie’s help and tells him to mind his business. Archie tells Marty Mantel to leave or else he’ll make him. Reggie comes to his father’s defense and warns Archie to back off, even pushing him. When the altercation turns violent, Mad Dog and Coach Clayton separate the two.
Cheryl and Toni go through with their back-to-school party as planned, with Peaches as the DJ. Mad Dog, Archie, Jughead, Betty, Veronica, and Reggie are in attendance. Cheryl declares Mr. Honey as their latest enemy. She assures the student body that he’ll be taken care of by Homecoming. Reggie tries to pick another fight with Mad Dog. He asks Cheryl if she knows Mad Dog, which she doesn’t, though she doesn’t object to him being at the party, which is more than she can say for Reggie. FP arrives after receiving a noise complaint and brings an end to the party. An intoxicated Reggie offers to get FP a beer. Rather than seeing him get arrested, Archie escorts Reggie home. FP informs Cheryl that Mr. Honey made the noise complaint.
Munroe drags his brother Malcolm into El Royale after catching him at the Wipeout arcade, where dealers and fiends are known to frequent. Munroe recalls Archie’s plan to turn the gym into a community center and presses him to go through with it.
Munroe, Archie, Veronica, Mary, and Ms. Weiss discuss the future of the gym. Archie and Munroe will group the kids for boxing and MMA lessons according to their age. They’ll also keep the gym open until 10:00 PM, so the kids have somewhere to go after school to keep them off the streets. Ms. Weiss explains just how much work this will entail. Archie informs them that he has help. Mr. Keller will be there during the day. However, before they can proceed, the gym will require an inspection and updates if it’s truly to become a community center, starting with adding a second bathroom.
Munroe, Archie, Reggie, Kevin, Betty, and Veronica share ideas on how they could to come up with the money to pay for the renovations for they gym. Veronica offers to front the money, but Archie doesn’t want anymore handouts. Kevin suggests a charity concert while Betty recommends a bake sale, which gives Veronica a better idea. She comes up with a car wash. Veronica organizes the event outside Pop’s diner. She collects the proceeds of the car wash as Archie, Munroe, Reggie, Kevin, and the Bulldogs, all shirtless with the exception of Kevin, wash the local women’s cars. Unfortunately, by the end of the day, they’ve only made $400 out of the $40,000 needed for renovations. Veronica proposes a couple more ideas, but none worth pursuing.
After Malcolm gets jumped by a couple thugs for not making deliveries for them, Munroe wants Archie to join him in hunting them down. The thugs that jumped him work for a guy named Dodger. He recruits kids from the arcade and gets them to do his bidding, such as burglary and car theft. Munroe wants to teach them a lesson, but Archie advises him against it. If Munroe is caught, he’ll be arrested, and he has his brother and grandma to look after. Archie will instead tell FP about Dodger and let the police handle it. The gym is how they will take care of Riverdale.
Munroe arrives at the gym to find Archie bruised and sleeping in the office. He realizes that Archie went after Dodger without him. Archie may have taken a beaten, but he didn’t leave empty handed. He stole Dodger’s money and now has enough to pay for a second bathroom. Munroe explains that the money is dirty and needs to be cleaned before they use it. He suspects that maybe Veronica can help with that.
Archie follows Veronica's advise and decides to get rid of the money. She then loans him the money to make the renovations. Munroe begins teaching a boxing class at the gym.
Munroe finds Archie in the student lounge and informs him that Dodger and his crew are still pissed that they got beat up and they plan on terrorizing the town on Halloween night. Munroe and Archie worry that the kids in the neighborhood will get caught in the crossfire. Veronica suggests they host a Halloween party at the community center to keep the kids off the streets. As for costumes, they need not worry as one of Veronica’s friends in New York, Katy Keene, who goes to the school of the performing arts, is an amazing designer.
Halloween night, Veronica gifts Archie and Munroe their costumes designed by Katy Keene. Archie is Pureheart the Powerful and Munroe is a The Shield. Veronica stays behind to clean up the diner, but assures Archie she’ll meet him at the community center later.
Archie overlooks the party at the community center. He catches Eddie with a knife and demands that he hand it over. Eddie asks if he can have it back after the party, and Archie says maybe. Munroe then alerts Archie of Dodger’s arrival with his crew. Archie and Munroe tell him to leave as it’s a private event. Dodger almost immediately recognizes Archie as the vigilante that attacked him, though he doesn’t make mention of it. Dodger spots Eddie, one of the kids who work for him and confronts him for partying rather than handling his business in the streets. He tries to take Eddie with him, but Archie and Munro block his access to Eddie and demand that he leave.
Archie sits down with Eddie and asks what it is that Dodger has him doing. Eddie is reluctant to speak. Munroe informs Archie of their latest problem. Some of the kids wanted to go home, and when Munroe went to go check if it was okay for them to leave, he discovered there was trouble out front. Eddie wishes to leave, but Archie tells him stay put until the party is over, during which time, he’ll walk Eddie home himself. Munroe and Archie meet Dodger and his crew out front and tell them to leave. However, they refuse. When Archie attempts to forcibly remove them, Dodger brandishes a gun, forcing him and Munroe to retreat inside and call FP, though he doesn’t answer. Until FP arrives, they’ll keep the party going.
While securing the building, Munroe and Archie finally get a call back from FP who’s pulling up outside. They realize Eddie’s missing and just then shots fire off outside. Archie runs out to find Eddie laying on the ground with a gunshot wound on his right leg.
While painting over the graffiti alongside the community center, Munroe and Archie are approached by a store owner from within the area. He claims that he caught one of the kids from the community center, Toby, stealing from his store. Archie offers to pay for the comic book that Toby attempted to steal. The store owner accepts Archie’s money and tells him to keep his kids away from his store. Archie then instructs Toby to grab a brush.
The next day, Munroe and Archie call a meeting with the kids after getting a call from FP that someone was stealing hubcaps. Anyone running with Dodger’s crew will end up dead or in juvie. If any one of them get arrested then the whole center will be shut down, and so Archie issues a new rule — anyone that runs with Dodger’s crew isn’t welcome at the community center. Toby asks what will happen to them when Munroe and Archie graduate and go to college. While that’s months away, it weighs heavy on Toby. Nonetheless, Archie tells him to pick a side. Toby and one other kid decide to leave.
Munroe and Archie give the kids boxing lessons. FP arrives to inform Archie that some of the local business owners have lodged a few complaints against the community center. He advises Archie to invite the neighbors over and get to know them. Hopefully then the complaints will stop. They proceed to hold a press conference. They invited Alice and the media to broadcast the meeting the surrounding businesses. Archie wants to set the record straight. Despite a few bogus complaints that were made, the community center isn’t going anywhere. In fact, they’re extending their hours to 11 PM and will even be open on Sundays. Archie asks that instead of working against them, that the neighbors help out by sponsoring a baseball team or donating time. Munroe and Archie also plan to start a Big Brothers and Big Sisters program. The Riverdale Bulldogs and Vixens have already volunteered. Archie invites anyone to try and shut them down. However, they will lose.
Flash forward to Biology class, Spring semester. Munroe, Archie, Betty, Veronica, Kevin, and Reggie are in class when FP and two sheriff deputies enter the classroom and place Archie, Betty, and Veronica under arrest for Jughead’s murder.
Munroe and Archie announce to the kids that they’ll be hosting at Thanksgiving dinner at the center tomorrow night considering most of them have no other place to go.
Thanks to Veronica, who put in a to-go order at the country club, the community center is stocked with food, enough the feed the town. Archie informs Munroe of his plan to deep fry a turkey, which his dad has done every year. FP interrupts with some alarming news. He’s under orders by the mayor to shut Archie down for Thanksgiving. Hiram's doing it to punish Veronica, to get her to spend the holiday with him. FP tried to fight him on the matter, but Hiram insisted. However, if he was in Archie’s place, he’d go through with his plans for Thanksgiving dinner for the community, which is exactly what Archie does.
Munroe and Archie host a Thanksgiving dinner at the community center as planned. As Munroe and Malcolm welcome guests, Archie tells Veronica of his plan to keep the center open over night so that no one is forced to go out in the storm.
Archie approaches Dodger's family. Darla claims that she doesn’t want any trouble as she slams a gun on the table, explaining that they’ve come for Dodger’s attacker. Veronica, Munroe, Mary, Malcolm, Eddy, and Toby watch as this unfolds. She has a feeling either Archie or one of his friends nearly killed Dodger, and they don’t plan on leaving until they find out who.
Munroe and Archie want to fight back against Darla and her family, but Veronica advises them otherwise as Darla has a gun. Nevertheless, Archie wants to get to the drawer full of weapons he has in his office that he’s confiscated off the kids. Veronica tells him not to in fear that the kids will get caught in the crossfire. Mary remains quiet during the discussion. Malcolm brings Darla and her boys a dish. He sits it down on the table and reaches for the gun, but is unsuccessful. Archie and Munroe intervene, explaining that he’s just a kid. Fagan punches Archie in the face, certain that he’s the one who put Dodger in the hospital. Darla agrees with him. She thinks Archie beat Dodger into a coma and then called the ambulance so that no one would suspect him. She then points the gun at Archie and forces him to his knees.
Darla demands that Archie admit to beating up Dodger. Archie will admit to it only if Darla agrees to let everyone else goes when he does. She agrees to his terms, but before Archie can admit what he’s done, Eddie, Toby, and Malcolm all claim they’re all responsible for putting Dodger in the hospital, but Darla isn’t convinced. Just as she is about to shoot Archie, the deep fryer explodes, causing a distraction long enough for Archie to disarm Darla. As Archie takes out her sons, Munroe orders the kids into the office. Veronica assists in the take down by pinning Bill Dickenson to the table by stabbing his hand with a carving fork. Mary grabs the gun, bringing the altercation to a head. She gives Darla, Bill, and Fagan five seconds to leave the center or the else. The three of them scurry as she starts counting down. As they leave, Eddie and Toby lock the door behind them. Archie, Mary, Veronica, and Munroe then investigate the cause of the explosion.
At the community center, Munroe, Mary, Archie, and Veronica sit at the head table. Mary starts the evening by stating they were never a particularly religious house. But the one thing Fred always liked to do when they sat down to eat as a family was to say grace. Archie takes the lead in blessing the food and then they eat.
Munroe, Betty, Jughead, Veronica Kevin, Reggie, Cheryl, Toni, Mary, FP, and Alice join Archie at the community center as he puts up a plaque in his father’s honor.
The bulldogs celebrate their place in the state finals for the first time in years thanks to Munroe, whom they shower with love. They will face the undisputed Stonewall Stallions. At the Blue and Gold, Betty interviews Archie, Munroe, and Reggie in the days leading up to the big game. During which time, a recruiter from Notre Dame is coming out just to see Munroe play. Reggie informs Betty that Stonewall has a history of cheating. Every team they’ve faced this year has suffered some kind of horrible injury. They don’t play to win. They plan to hurt.
While leaving the community center, Munroe is attacked by four guys wearing bunny masks. Archie and Reggie arrive on the scene to find him on the ground, cupping his knee after being hit with a golf club. Reggie is certain that Munroe was attacked by Bret and Stallions.
Munroe informs Archie that he won’t be able to play in the game. If he puts any type of pressure on his knee, it could cause permanent damage. Frank offers a way for Munroe to play through the pain. He has some meds from the VA. They’re not going to heal Munroe’s injuries, but they’ll numb him long enough for the game. Archie turns down the offer, but Munroe is more willing to take the chance. Munroe accepts the pills from Frank and arrives in the locker room for the big game. Munroe refuses to sit the game out as a Notre Dame recruiter came all the way to Riverdale just to see him play. That’ll change Munroe’s family’s life. Archie worries that he’ll get hurt and never play again. Munroe takes the risk nonetheless.
The game commences, and the Stallions score first. However, the Bulldogs get Munroe the ball and he scores. By the end of the game, it’s the Bulldogs’ 6 points to the Stallions’ 7, and Archie is planning to go for a two-point conversion. Archie hands Munroe the ball, but he fails to make the conversion and is tackled to the ground. With that as the final play of the game, the Stallions leave with the victory. After the game, Munroe enters the locker room and informs them that he just got cornered by the recruiter from Notre Dame, who told Munroe that he wants him in Indiana next week to play ball for them.
Mad Dog is shown to be a well built.
The relationship between Archie and Mad Dog first started out rough, with the two barely saying a word to each other. After sharing a prison cell for some time, they became friends, protecting each other. They both eventually found themselves entangled in the underground fight club ran by Warden Norton, who Archie repeatedly disobeyed. Just as they finally came, Archie returned to his cell after the prison yard riot to find Mad Dog was gone. He was told that Mad Dog died during the riot, but Archie knew that to be a lie. Mad Dog later returned to help Archie escape, and in return, Archie blackmailed the Governor to get Mad Dog pardoned from Leopold and Loeb. The two have shown their loyalty and have proven that they're willing to fight for the other.
- Unlike most of the other characters, Munroe Moore is not a character from the Archie Comics.
- However, he shares his last name with cartoonist Tom Moore, who worked on several iterations of the Archie Comics in the the late 1950s, and then again in the late 1980s.
- Munroe shares his nickname with Mr. Collier, one of Betty's uncles and a teacher at Riverdale High who's either "Collie", "Though but Fair", or "Mad Dog" depending who you ask in the 2015 Archie Comics.
- See also: Category:Images of Munroe Moore