Frank is his roommate and possible biological father.
Charlie is the janitor at the pub, and a known illiterate.
All right, look, I'm just going to walk you through it, so pay attention.
Season Two: “The Gang Runs For Office” Again, Dennis at first refuses to read another script Charlie writes for a speech for his comptroller campaign, but eventually gives in and of course it’s broken English which barely makes sense. Charlie: Well why didn’t you cut it like a...cause it totally looks like a dick. And she feels very excited, she feels very sensual and I feel very sensual about her because she looks so good. And then we chit-chat at her place, it's no big deal, but eventually she says, "Do you want to make love, Charlie? First of all, your breath smells like an old-lady fart passing through an onion. Dennis: When she jumps up on the stage we'll blast her with the water, the crowd will go crazy, the other girls are gonna wanna join in, and we will save the bar and then she'll break up with Charlie ruining any hopes for happiness that that son of a bitch ever had. Here's the thing--I had a really strange night last night. (He walks out.)Charlie: Okay, okay, quick conference, guys. He's going to his car and he's going to slide it sideways, ya know what I mean? Charlie: Look, Mac, I'm tired, I want to go home, I just want to wash my hands of this whole stinkin' mess, so I'm gonna ask you just one time: did you, or did you not, snap into a distinct and alternate personality, and go on a serial killing rampage? Now the dress is starting to look fantastic, you know? Get your hand off my shoulder because I've got a fatty to burn. look at this guy, he's definitely a drifter, all right? Dennis has a fool-proof way of seducing women, leaving them with a psychological craving for his essence. But it's Frank and Mac who win big here thanks to Frank's ingenious "Rum Ham" and a party boat filled with booze, spray-tans and steroids. The physically and emotionally dangerous game that The Gang played back in Season 7 when it was a rainy day and they'd exhausted all other activities! ) which features Mac and Charlie doing their darndest to fake their deaths after their plan to lie to the parole board about Mac's felon father goes bust. Dennis and Dee drag everyone down to the Jersey Shore in a feeble attempt to recapture childhood memories.