<P> Nick (Windell Middlebrooks) is Carmen's portly African - American husband . Mac is initially annoyed that Carmen had moved on to Nick instead of calling him after she had her penis removed . Mac does not agree with gay marriage and quotes the Bible verse Romans 1: 27 to Nick, to which Nick responds with the Bible quote Exodus 21: 20 endorsing slavery . Nick later appears in "Dee Gives Birth" where it is revealed that Dee is a surrogate for the couple since Nick cannot have kids but Carmen had frozen her sperm before her operation . </P> <P> Bill Ponderosa (Lance Barber) first appears in "Mac Fights Gay Marriage" and the follow - up episode "Dennis Gets Divorced" as Dee's high school crush and the brother of Dennis's high school girlfriend Maureen Ponderosa . He has put on a lot of weight since high school . Dee eventually becomes his mistress when Dee thinks he bought her a new car when in fact the car belongs to another of Bill's mistresses . Bill returns to his wife . Bill later returns in "Dee Gives Birth" as one of Dee's potential baby's daddies . Bill reveals that he tells girls he's had a vasectomy so he doesn't have to use a condom . He appears in the episode "The Maureen Ponderosa Wedding Massacre" where he spikes a punch bowl with bath salts and it is revealed that Frank is his AA sponsor . He also displays an affinity for cocaine . Ponderosa also appears in the Season 11 episode "Being Frank," where it is revealed that he and Frank have developed a friendship based on hard partying and other social activities, and Frank has nicknamed him "Pondy ." Frank borrows Ponderosa's car to help the rest of the Gang spring Dennis' Land Rover from a city impound lot without paying, dropping Ponderosa off at a roller rink where he ends up being brutally beaten by a group of men for hitting on underage girls . Ponderosa also makes a brief appearance in the season 12 episode "Making Dennis Reynolds a Murderer," where in an interview he implies that he does not miss his dead sister and that Dennis "did us all a favor . You ever seen a grown woman take a dump in a sandbox?" He states that Dennis did not kill Maureen, who "died three years ago," he killed Bastet, a reference to Maureen having come to identify as a cat and begun transitioning, having renamed herself after the Egyptian cat goddess . </P> <P> Maureen Ponderosa (Catherine Reitman) is Dennis's high school girlfriend and the sister of Bill Ponderosa . Dennis eventually gets back in touch with Maureen and marries her in "Mac Fights Gay Marriage". She has a dead tooth that makes her breath "smell like she nibbled on little pieces of shit". Dennis gets tired of Maureen fairly quickly and in "Dennis Gets Divorced" she hires the Lawyer as her divorce attorney, ending up in a total demolition of Dennis where he has to assume her tens of thousands of dollars in debt as well as pay her monthly alimony . She later appears in "The High School Reunion" and reveals she's spending her alimony money on a diamond for her dead tooth . Maureen eventually got her dead tooth removed, as well as getting a breast enhancement sometime between seasons 7 and 8 . She became engaged to Liam McPoyle but on the day of the wedding, upon seeing Maureen's new body, Dennis sleeps with her again . By Season 10 she has undergone a series of bizarre plastic surgeries into order to turn herself into a literal "cat lady" and in Season 11 she says in a courtroom that he wants to be referred to as just a "cat", period . She dies in a Season 12 episode and Dennis is the prime suspect (considering the aftermath of their divorce), until it's revealed neither he nor anyone else murdered her; she was trying to walk along the edge of a roof like a cat and fell off it, landing in an alley headfirst where she broke her neck and died . Despite these revelations, Charlie and Mac try to paint Dennis as the killer via a Making a Murderer - style documentary . </P> <P> Rex (T.J. Hoban) first appears in "America's Next Top Paddy's Billboard Model Contest" as one of the male models vying for the spot on Paddy's Pub's billboard . Although an early favorite of Frank's eventually Frank himself appears on the billboard . He also appeared in the season 5 episode, "Dee Gives Birth" as a potential father of Dee's baby although it is later revealed that Dee was acting as a surrogate for Carmen and her husband Nick . Rex also appears briefly in the season 9 episode "The Gang Saves the Day" as an angel in part of Mac's fantasy . Rex also made an appearance in the finale of season 10, "Ass Kickers United: Mac and Charlie Join a Cult". </P>

Are dennis and dee related in real life