<P> Samuel / Babatunde (Nyambi Nyambi) is a sarcastic waiter at Abe's, where Mike and Carl eat . He is often seen hanging out with Carl and Mike, and despite frequently insulting them, he is considered their friend . He is from Africa and often refers to the suffering in his home country of Senegal (which he was apparently kicked out of). As such, he does not sympathize with most problems his restaurant patrons bring to his attention, believing them to be "petty". He becomes Carl's roommate in Season 3 . In Season 5, Samuel's real name is revealed to be Babatunde when he becomes the owner of Abe's Diner, now Abe's Hot Beef . He states the previous owner was so cheap he wouldn't buy him a badge with Babatunde on it, instead giving him a former employee's badge . He notes that the high cost of replacing the sign will keep the Abe's name intact until he can afford to proudly put up a sign for "Babatunde's Restaurant". </P> <P> Vincent Moranto (Louis Mustillo) is Joyce's on - and - off boyfriend in Season 1, who thereafter becomes her fiancé . He is a widower and tends to be chauvenistic and sarcastic, and also likes to openly discuss his sex life, one of the main reasons neither Mike nor Molly seek out his company nor spend more time around him than required . He is a high school dropout and can come across as unintelligent, though the series has shown or mentioned he had made a lot of money in the past through his various enterprises (some of which may be a bit "shady"). In the second - to - last episode of Season 2, it is revealed he is technically still married to a much older woman . (Vince claims that at the time of their marriage, the woman was "a very do - able 60 - year old .") Joyce throws out Vince when she learns of the marriage at Mike & Molly's wedding rehearsal . Vince actually hadn't seen the woman in several years, outside of a few attempts to get her to sign divorce papers, which she consistently refused because Vince still owes her $2,000 "plus interest ." Mike negotiates with the woman to sign the divorce papers in exchange for $5,000 from Vince and the opportunity to kick Vince in the crotch . Joyce and Vince reconcile, and in the Season 3 episode "Thanksgiving Is Cancelled", they get married . Vince put off marrying her because he was broke . Although Molly knew he was a widower, she didn't know that he was broke due to his having to take care of his late wife when she got sick and eventually passed away until he explained it to her . When he explained how he stayed by her side and took care of her during her illness, Molly warmed up to Vince and even helped him cook a Thanksgiving dinner that he was forced to prepare on his own . In Season 5, he becomes an investor and silent partner in Abe's Diner, after Samuel assumes ownership . </P> <P> Margaret' Peggy' Biggs (Rondi Reed) is Mike's mother . She is very controlling and traditional, as well as grumpy and cranky . Peggy frequently expects Mike to do her bidding at the drop of a hat, which made her initially cold toward Molly becoming a part of Mike's life . She has since warmed up some to Molly, and began working as a lunch lady at Molly's school in Season 2 . Her tendency to lie when the truth isn't kind to her connected with that job when she told Molly she had "retired"; she'd actually been fired for being impossible to work with . Mike usually plays along with her revisionist history, but finally gets pushed too far in this case and tells Peggy she got fired because she is bitter, toxic and unlikable by anyone . She is divorced, living alone with her dog "Jim" (she even turned over Mike's old room to Jim) and often talks about her ex-husband, Jack, leaving her and running away with a "whore". Her longtime courtship of a sweet - natured and unsuccessful fellow Catholic named Dennis ended badly when she finally decided she was ready for them to have sex, only to realize he'd suffered a heart attack and died . A shocked Peggy tried to blame it on a sour lemon cake Molly had prepared for her birthday, only to have a no - longer - afraid Molly jab Peggy about her ham - fisted efforts to cover up her death - blocked seduction of Dennis . Despite her obvious disdain for Jack, the two sleep together after Mike and Molly's wedding rehearsal, but Peggy dumps him immediately after . She has a gift for writing that Molly surprisingly discovered during her own successful effort to start a career as an author, and Peggy's sordid past romantic exploits become the basis for Molly's second novel . Peggy reveals that she has always felt guilty for leaving her abusive home at an early age, while her mother was stuck with a drunken batterer for a husband . She also has a sister who still lives in their hometown with whom she has feuded since their teenage years, but they eventually reconciled in Season 5 . As the series ends, Peggy remained both manipulative and decent - hearted, from playing on tension between Molly and Mike when she suffers a heart attack that Mike felt Molly caused (Peggy confirmed she didn't) and nearly getting her ass kicked by Joyce when she tries to guilt Mike into moving back home, but being reassured by Mike that while he won't move back home then or ever he still will make sure she's part of her grandchild's life . </P> <P> Rosetta McMillan' Nana' (Cleo King) is Carl's grandmother . She apparently raised Carl since his childhood, and Carl still lives in her house . She is very traditional and has professed that Carl is a very special part of her life, but she is outwardly annoyed by his immature behavior . She has a big heart and is very friendly toward Mike, who calls her "Nana ." She has been known to treat Mike as if he were also her grandson, and Mike frequently goes to Rosetta for advice about his relationship with Molly, rather than to his own mother . Despite her advancing age, she is shown to have a large sexual appetite, including an ongoing relationship with the preacher from her church . (Being only seven years older than Reno Wilson in real life, King wears a wig and makeup to appear older .) Nana is a singer; she leads the choir at church, and the presence of gold records on the wall of her house indicates she had a career as a recording artist or session vocalist . </P>

Who plays mike's mother on mike & molly