Greg Pewterschmidt (father)
Every episode except "Death Has a Shadow", "I Never Met the Dead Man", "The Perfect Castaway", "Stu and Stewie's Excellent Adventure" (mentioned only), "Blue Harvest", "Baby Not on Board", "Three Kings", "Something, Something, Something, Dark Side", "And Then There Were Fewer" (voice only), "It's a Trap!", "Valentine's Day in Quahog", "Grimm Job", "Candy Quahog Marshmallow!" and "V is for Mystery"
Jake Pewterschmidt (born March 2, 1986) is Pewterschmidt family's distant cousin.
Jake was born on March 2, 1986 in an unknown distant region to Greg and Tina Pewterschmidt. He is an antheist like Brian, despite his parents' religion being Judaism. He moved to Griffins' home in "Chitty Chitty Death Bang" on Stewie's 1st birthday and later decided to stay seeing that Stewie's intelligence can be useful. Because of this, he's one of the people that can clearly understand Stewie. He often leaves Quahog, coming back afterwards. Reasons of him leaving are either not wanting to be with his family or having unfinished deeds in his hometown.
He is a slim teenager with red messy hair, blue shirt, brown jeans and black shoes.