Mickey McFinnigan

Mickey McFinnigan is the biological father of Peter Griffin, and so the father-in-law of Lois and the biological grandfather of Stewie, Chris and Meg. Seth MacFarlane voices him. He lives in Ireland, where his standing rests on his being the town drunk, a position his neighbours hold in high regard. Peter seeks him out in "Peter's Two Dads", having learned that Francis Griffin, newly dead, was not his real father. Mickey is drawn to look like Peter, with the addition of a green waistcoat and a red beard, and he keeps a talking sheep called O'Brian whose manner resembles Brian's. He will not accept Peter as his son until Peter beats him in a contest of drinking.

Credited in the principal cast or guest list of 1 episode across 1 season. IMDb records up to ten voice credits per episode, so this is a floor: the character can appear in episodes not listed here.

No character imagery appears on this site; the monogram is an original design. See how this character is related to others on the family map.