Cheryl Tiegs (born September 25, 1947) is an American model, actress, designer, author, entrepreneur and a minor heroine from TV Series "Family Guy". His first full appearance is in the episode "Tiegs For Two", she was Glenn Quagmire's former girlfriend turned Brian Griffin's girlfriend, but when he sees the behavior of both infatile, she decides to leave them both. She appears again in the episode "Valentine's Day In Quahog", where she and other Brian's former girlfriends forgive him for the errors on who committed.