For most of the series, Peter is shown as an obese , unintelligent, lazy, outspoken, immature, and eccentric alcoholic. He has several jobs, which have included working at the Happy Go Lucky Toy Factory, a fisherman , and currently as a shipping clerk at the Pawtucket Brewery. She is an Anglo-American housewife who cares deeply for her kids and her husband, while also working as a piano instructor.
Lois is also very flirtatious and has slept with numerous people on the show. She is a self-conscious, insecure, and sensitive teenager who is more often than not ridiculed and ignored by the people around her. Meg just wants to be another face in the crowd by fitting in with her peers and being accepted, but she often finds herself to be a victim of circumstance. He is a friendly, warm-hearted, and funny teenager who is a younger version of Peter physically, but intellectually, he very often shows better potential, as demonstrated from moments of coherence and articulation within his speech, especially when talking about films, TV series, actors and actresses, etc.
Despite this, he can be very naive and gullible, often displaying a tendency to be easily fooled. Stewie Griffin Stewart Gilligan "Stewie" Griffin voiced by Seth MacFarlane is the Griffin's 1-year-old child, but often behaves in adult ways such as speaking in an upper-class British dialect. He is a child genius who frequently aspired to murder his mother Lois and take over the world but has since mellowed out considerably.
Stewie built a time machine with which he and Brian have traveled through time. He turned 1 year old in " Chitty Chitty Death Bang ," and has not aged past one year since. As a fact in " Road to Rupert ," he says he is a year old. He and Stewie are often at the center of the show's most critically acclaimed episodes, most notably the " Road to Brian is portrayed as an intellectual—a Brown University attendee—who often serves as the family's voice of reason, pointing out how ridiculous Peter's ideas are.
He is not-so-secretly in love with Lois and is an unsuccessful, unemployed writer. Brian was not revealed to be an atheist until season 7.
In earlier seasons, he was shown to be very much a believer of God especially in " If I'm Dyin', I'm Lyin' " in season 2. How this change occurred in Brian is unknown. In " Life of Brian ", Brian is hit by a car and dies from his injuries, with the family by his side. However, in " Christmas Guy " two episodes later , Stewie still misses Brian. He finds a way to go back in time and successfully saves him, also meaning that the family never adopted Vinny.
Though Stewie and Vinny did say their goodbyes. He was once married to Peter's biological mother Thelma Griffin. An obsessively devout Roman Catholic, he hates Lois because she is not a Catholic, and often calls her a "Protestant whore", disapproves of his son's family's lifestyle, and frequently attempts to force his religious views on them. To a lesser extent he disapproves of Lois due to her heritage, and is angry with Peter for not marrying an "Irish rose".
Despite all of this, he truly did love and care for Peter, and showed on multiple occasions to care for his grandchildren.
Francis used to have a job at a metal fabrication plant; after his short retirement, he became a bodyguard for the Pope. In the episode " Peter's Two Dads ", Francis dies on Meg's 17th birthday when Peter dressed up as a clown gets drunk and tries to ride a unicycle down the stairs, but ends up falling off the stairs and landing on top of Francis.
Francis dies in a hospital after uttering "Peter Francis appears at the memorial in " Perfect Castaway ". He is an Irish drunk. Mickey mocks Peter at first and bullies him, but Peter challenges him to a drinking contest and wins. Finally, Mickey accepts Peter into his family and spoils him ever after by buying Guinness and more. She is the mother-in-law of Lois.
She first appears in " Holy Crap ". She is 82 years old as stated in the episode " Mother Tucker ", has gray hair and noticeable wrinkles below her eyes, and wears purple earrings and a purple bead necklace.
She also wears glasses like her son and husband and is a heavy smoker. Unlike Francis, she is generally friendly and personable, and gets along well with Lois.
Before Francis' death, she divorced him because she had "needs he didn't fill" and dated Tom Tucker for a while in " Mother Tucker ". She often appears with news inconvenient or troubling to Peter and his family. In the episode " Grumpy Old Man ", it is revealed that Thelma was sent to a retirement home. In the Season 12 episode " Mom's the Word ", it is revealed that Thelma died from a stroke.
Thelma's death was written into the series because of Phyllis Diller's own death in August Karen is a professional wrestler and is shown as the reason Peter bullies Meg where he was picked on by Karen. During her fight with Peter in the ring, Karen was knocked out by Meg using a real folding chair instead of a fake folding chair which puts her in a coma. At the end of the episode a doctor calls Peter on the phone and tells him that Karen needs a blood transfusion to save her but Peter refuses.
He is also a billionaire industrialist, shipping mogul, and owner of several major companies. His company in the episode " Business Guy " is named Pewterschmidt Industries, and he is also a member of a fancy yacht club, where he mingles with other superwealthy people.
He is a hard worker, and has been shown to have become temporarily senile as a result of forced retirement in " Grumpy Old Man ". Carter is a domineering, devious and manipulative individual who despises his son-in-law, Peter, whom he often insults, badmouths and seeks to humiliate.
On rare occasions, he and Peter work together, normally with a common goal. He is married to Barbara, with whom he had three children — Lois, Carol, and Patrick. It is revealed in " Welcome Back, Carter " that he was an Allied officer.
He is shown to be a womanizer with a fetish for Asian women, having had affairs in " Welcome Back, Carter " and " Carter and Tricia ", and hiring an Asian prostitute in " Stewie Kills Lois ". Lois left Peter once, but with persuasion from him, entered the dating scene, but he eventually convinced her to take him back. In " Screwed the Pooch ", it is implied that Carter had an affair with an African-American woman, resulting in a biracial son as mentioned by Lois.
In Laugh It Up, Fuzzball: It is noted on a few occasions Barbara only married Carter for his wealth and family heritage. She is demeaning but more polite to Peter than her husband is. In appearance, she is basically an older version of Lois.
In " Family Goy ", it is revealed she is Jewish , and a survivor of the Holocaust. She only changed her religion so she and Carter could gain access to country clubs.
It is also revealed in that episode that her maiden name was Hebrewbergmoneygrabber, which was changed to Hebrewberg to escape Nazi persecution. In the episode " Running Mates ", she is described as passive aggressive. Barbara Pewterschmidt is also the ex-wife of billionaire Ted Turner. She left Carter in " Welcome Back Carter " after learning he had an affair. However, she does eventually forgive him after deeming herself too old to remarry. In Don't Be a Dickens at Christmas , most of Pewterschimdt family are fluent in German , but Lois is not, and Stewie understands it, but cannot speak it.
In " Emission Impossible ", Peter and Lois had to stay with her when she ended up pregnant. The baby, a boy, is born in the episode yet never seen again. Her previous husbands include Evan Johnson who bonded with Peter over the Boston Red Sox baseball team , Randall Carrington who is always bringing people very unusual and inconvenient gifts , and Doggie Daddy it was mentioned that Augie caused a strain in their relationship. She gets married to Adam West and is still with him since the " Thanksgiving " episode.
Patrick Pewterschmidt voiced by Robert Downey Jr. He has been kept hidden by her mother and father. He first appeared in the episode " The Fat Guy Strangler ". When a picture of Lois's family was broken, she noticed a folded-in part of the picture included a brother she did not know she had. She then broke into her parents' house and found out where he lived. Then she and the family drove to the address which was found to be a mental institution. When there seemed to be nothing wrong with him they decided to check him out and take him in.
Later it is discovered that he has an imaginary wife named Marian and, more importantly, that he had a hatred of overweight people due to a bad experience from his childhood witnessing comedian Jackie Gleason having a sexual encounter with his mother. At the same time, there is a rash of killings in the neighborhood of fat men, and Patrick is strongly suggested to be this "Fat Guy Strangler".
After denying it, Lois finally decides she must take him back, after he tries to strangle Peter to death. Patrick appeared in the season 10 episode " Killer Queen ", in which he helped Peter and Joe after he is released from the mental institution by Charles Yamamoto as part of his revenge plot on Chris which involved framing Patrick. After Charles dies from having the cover of the Queen album News of the World shown to him by Stewie, Patrick identifies Charles as the one who let him out of the mental institution.
Patrick manages to slip away after that with Peter having to injure Joe to make it look like a struggle. Jasper voiced by Seth MacFarlane — Brian's stereotypical flamboyantly homosexual cousin.
Brian stays with him in Hollywood in " Brian Does Hollywood ". Guy Who Receives ". Jasper also makes a short appearance in " E. Peterbus Unum " during a flashback of Peter getting something the family does not need in this case, a new dog—one that looks like a flamboyantly gay version of Brian.
He also appeared in " Brian's Play ", when he was seen chatting to Brian through a webcam. His most recent appearance along with Ricardo was at Brian's funeral in " Life of Brian ". Bertram voiced by Wallace Shawn — The son of a gym teacher and her partner through artificial insemination.
Bertram's biological father is Peter Griffin. In " Emission Impossible ", Bertram is a sperm inside Peter's testicles. He enters combat with Stewie Griffin in order to prevent his destruction, as Stewie wishes to remain the baby of the family. The two became frenemies, and Stewie changes his mind on a new family member.
In " Sibling Rivalry ", it is revealed that a mishap prior to Peter receiving a vasectomy caused Bertram to be part of a sperm donation used to impregnate a female gym teacher's partner.