Johnny Tightlips

Johnny is presumably in his 30s, and he works for the D'Amico Crime Family. He is a capo alongside Legs and Louie. He has a grandmother (Who he affectionately calls "Granny") and mother. Although in "Poppa's Got a Brand New Badge,” when Fat Tony asked Johnny how his mother is, he reticently exclaims and then says “Oo-whee, who says I have a mother?".

Johnny has short black wavy hair that is receding, thick black eyebrows, shifty eyes, and wears a purple suit, a pale purple shirt with dark purple pinstripes, a light purple necktie, purple pants, and dark purple shoes. In "Insane Clown Poppy" and "Poppa's Got a Brand New Badge,” Johnny's skin color had a darker shade of yellow, then starting in Season 14, his skin is instead a normal yellow coloration. Also, the pinstripe linings on his shirt, his shirt’s sleeve rims underneath his suit’s sleeve rims, and even his eyebrows sometimes disappear and reappear in different shots in some episodes.

Johnny is obviously very stoic and anti-social. He’s shown to be more focused on the mafia’s functioning in recent episodes. Fit-Fat Tony even complained once that he’s not really good at reading emotions. He is fairly mean to fellow mobsters such as Louie and Dan Gillick. Even in his cameo appearance in "I'm Just a Girl Who Can't Say D'oh,” he is seen attending with his unnamed infant daughter, alongside Frankie the Squealer and his unnamed infant son, the same Daddy and Me class (A class for fathers and their babies) that Homer Simpson attended with Maggie Simpson, revealing that he and Frankie, like Fat Tony with Michael D'Amico, (As well as Legs and Louie with Calves and Louie Jr. respectively in the comics) are fathers as well. It was even hinted from his experience with his daughter in "A Made Maggie" that he does have a soft side for baby and child stuff when he was helping Fit-Fat Tony, Legs, and Louie open the Bambino Depot at the Springfield Mall when he secretly showed a soft side towards a teddy bear while smiling tenderly at it, only to quickly cast it aside gently and resuming his tough guy role.

Johnny first appeared in "Insane Clown Poppy,” where he is at a mafia meeting. Later in the episode, he gets shot. When Louie asks him questions out of concern for him, he dodges them automatically. His second appearance is in “Poppa's Got a Brand New Badge,” where he and his three other goons (Whom Fat Tony referred to as "[His] Joisey [Jersey] muscle.") go with Fat Tony, Legs, and Louie to the Simpsons’ house in an attempt to kill Homer out of revenge for his business, SpringShield, busting Fat Tony, Legs, and Louie for trying to illegally sell some ferrets disguised as toy poodles. Homer is then supported by a mysterious sniper, (Secretly revealed to be Maggie saving Homer from the mafia's wrath) Fat Tony asks Johnny if he can see the said mysterious sniper, resulting Johnny to just say that "[He] see[s] a lotta things." They all get shot by Maggie, which they didn’t know, and then, offscreen, arrested by Chief Wiggum, who got his job as a police chief back after Homer decides to quit and end SpringShield due to him almost getting killed by the mafia for it.

The only two times he ever got emotional were in "Moe Baby Blues" when he broke down crying along with Fat Tony's gang, the Castellaneta Family, and President of the Italian-American Anti-Defamation League upon being touched by Maggie's innocence that Moe Szyslak pointed out when the latter saved her from an "Italian-American-Mexican Standoff" at Luigi's by pointing out how her innocence changed his life before, and in “Top Goon,” when he, Legs, and Louie, upon being touched by Moe’s kind speech to Nelson Muntz, even to the extent of Johnny pulling a piece of bologna to wipe a tear away like a handkerchief, confide to Fit-Fat Tony about their relationship with him and how he sees them as weapons, which makes the three capos break down crying at the revelation. in "The Mook, the Chef, the Wife and Her Homer," he, while visiting an unconscious recuperating Fat Tony at the hospital after their rival mobsters, the Calabresis, shot him down with some non-fatal gunshot wounds, actually showed some concern for Fat Tony, admitting that if the Calabresis aren't taken care of, they will put the unconscious recuperating Fat Tony, who is going through a "Morphine mambo," in a "Dirt nap." He then later casually comforted Fat Tony’s son, Michael, by encouraging him to temporally take his father's place as the mafia’s don until Fat Tony is better. He then, a few seconds later, also, in bitter annoyance, described to Louie in his face that he is a "Hybrid; Half idiot, half moron.", when Louie asked about going to try out a new car hybrid at the Lexus dealership on the way back to the Legitimate Businessman's Social Club.

In "Waverly Hills 9-0-2-1-D'oh," it’s revealed that, upon learning from Wiggum that Batman will be at his son, Ralph Wiggum’s, birthday party, Johnny, along with Fat Tony, Legs, and Louie, is terrified of Batman, admitting that "[He] ain’t messing with no caped crusader!”, due to the fact that Batman would beat a villain up for a confession. in their brief cameo in "Rednecks and Broomsticks," Frankie admitted that Johnny has a bad back while Johnny, Legs, and Louie were forcing Frankie to dig his own grave in the woods when Johnny suggested that he, himself, will dig Frankie's grave for him in a threatening way. In "What to Expect When Bart's Expecting," upon finding out that Bart Simpson had helped successfully impregnated Fit-Fat Tony’s horse with an unborn male foal with Homer’s help within 24 hours upon the two's abduction by the mafia, despite Louie happily and cluelessly pointing out how happy Johnny is at the good news, he is, deep down, pleased with the rest of the mafia who happily responded to those good news, yet he was the only one who didn't actually smile on the outside.

Homer even mentioned to Dan, in order to "Convince" the latter to spare Johnny and the mafia members he was ordered to "Rub out" by Fit-Fat Tony, that Johnny digs wells while, at his spare times, vacationing in Darfur, indicating that Johnny, despite being a criminal mobster, also shows an altruistic side at times when it comes to charity work. (Although Dan had already asked Homer to stop him from killing Johnny and the other mobsters) ("Penny-Wiseguys") Although very reticent and laconic, and at times altruistic, that doesn't mean he isn't treacherous, as Fit-Fat Tony learned the hard way when Johnny framed Fit-Fat Tony for pickpocketing wallets and set Fit-Fat Tony up into walking into a warehouse storing them, and what gave him the confidence to betray Fit-Fat Tony by framing him and becoming the new boss is taking some Paxil, which is also his confidence-boosting medication. But after Fit-Fat Tony cleared his name and exposed Johnny as the real wallet pickpocket with the police's help, Johnny was then arrested after he accidentally almost killed Homer by accidentally shooting him in his rear when Johnny meant to shoot Fit-Fat Tony. Afterwards, Johnny, for unknown reasons, ended up being reaccepted back as Fit-Fat Tony's capo again after being released from jail. (Probably because Fit-Fat Tony admitted earlier in the same episode that he trusts Johnny, and he, offscreen, probably decided, along with the other mafia members who also reaccepted Fit-Fat Tony as their boss again, to forgive Johnny for his actions against Fit-Fat Tony) (“The Fat Blue Line”)

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