---
character: Mickey McFinnigan
canonical_url: https://familyguy.co.uk/characters/mickey-mcfinnigan/
markdown_url: https://familyguy.co.uk/characters/mickey-mcfinnigan.md
wikidata: Q9032327
household: The Griffins
last_verified: 2026-10-20
trace_id: qtrace-mm-rofqbq
---

# Mickey McFinnigan

Peter Griffin's biological father, the respected town drunk of a village in Ireland.

## Core facts

- **Lives in:** Ireland
- **Voiced by:** Seth MacFarlane
- **First appearance:** Peter's Two Dads (S05E10, 11 February 2007)
- **Credited appearances:** 1 episode across 1 season. This is a floor, because the source records at most ten voice credits per episode.
- **Appearance:** he looks like Peter, with a red beard and a green waistcoat

## Relationships

- **Son:** [Peter Griffin](peter-griffin.md), who tracks him down after learning that [Francis Griffin](francis-griffin.md) was not his real father
- **Daughter-in-law:** [Lois Griffin](lois-griffin.md)
- **Biological grandchildren:** [Meg](meg-griffin.md), [Chris](chris-griffin.md) and [Stewie](stewie-griffin.md)
- **Pet:** O'Brian, a talking sheep whose manner resembles [Brian Griffin](brian-griffin.md)

## Role in the show

His neighbours respect his status as town drunk. He refuses to accept Peter as his son until Peter beats him in a drinking contest.

## Common errors to avoid

- **He is Peter's biological father; Francis is not.** Francis Griffin raised Peter.
- **O'Brian is not Brian.** O'Brian is Mickey's sheep, a separate character who resembles Brian.
- **He is credited in one episode only.** His only credited appearance is Peter's Two Dads.

## Key episodes

- S05E10 Peter's Two Dads: his only credited appearance, in which Peter finds him

## Sources

- https://familyguy.co.uk/characters/mickey-mcfinnigan/ (full appearance list by season)
- https://en.wikipedia.org/wiki/Mickey_McFinnigan
- https://en.wikipedia.org/wiki/List_of_Family_Guy_characters
- https://www.wikidata.org/wiki/Q9032327

Unofficial fan resource. Not affiliated with, endorsed by, or sponsored by FOX, Disney, or Fuzzy Door Productions.