Peter griffin is an Irish American who works in a brewery. His neighbors/best friends Glenn Qwagmire, Joe Swanson and Cleveland Brown(who moved to Stoolbend) are his drinking buddies. They all go on crazy and stupid adventures such as going to find god so he can stop messing with their football team or going to find where this one joke came from but end up ending prisoners for a secret society for the people who make the best jokes in the world.
Lois griffin is the stressed mother of the house that doesn't have a job. Her friends are Bonnie Swanson, wife of Joe swanson, and most of her adventures are usually trying to redeem herself, helping the kids or helping a resident of Quohog.
Brian griffin is the dog of the house and most of the time the person the wisest person in the house. His friend is Stewie Griffin, the baby of the house. Him and Stewie are best friends and are blood brothers, they usually go on adventures like going to the north pole or going back in time to stop bertram , his biological brother, or going to Brian's old home to find his mother but finds out she's dead and is turned into a decoration.
chris griffin is the son of lois and peter. Chris is always trying to find his personality or trying to get away from bullies. He is known to be very dumb in some cases but sometimes has a little bit of sense.
Meg griffin is the daughter of Lois and Peter. Meg always gets bullied, even by her own family she is hated. The only person who has ever cared for her is Brian and Peter. Brian thinks that Meg is the thing that holds the family together. Peter almost said that he loves her and says that they are secret best friends.
Stewie griffin is the third child of Lois and Peter. He is known for being sometimes gay with his teddy bear "Rupert". In the early episodes he would always say he would rule the world and plant domination but over the episodes he has turned soft. He also has had many devices such as a time machine, laser gun, a teloportation device that dupicates people or a multi-universe device. He usually goes on adventures with Brian like going back in time to stop Burtram from killing Leonardo Davinci so the universe doesn't collapse or going to their original universe because they broke the device and then need to keep traveling through out other universes.