Guest voice credits for Season 12
Finders Keepers
- John G. Brennan
- Yvette Nicole Brown
- Chris Cox
- Ralph Garman
- Jerry Lambert
- Patrick Meighan
- Kevin Michael Richardson
- Julius Sharpe
- Danny Smith
- Alec Sulkin
- Lea Thompson
- John Viener
- Patrick Warburton
- Adam West (actor)
Vestigial Peter
- Chris Cox
- Carrie Fisher
- Ralph Garman
- Patrick Meighan
- Joshua Rush
- Danny Smith
- Patrick Stewart
- Alec Sulkin
- Fred Tatasciore
- John Viener
- Patrick Warburton
- Wellesley Wild
Quagmire's Quagmire
- Steve Callaghan
- Chad L. Coleman
- Ralph Garman
- Phil LaMarr
- Adam Levine
- Rachael MacFarlane
- Julius Sharpe
- Danny Smith
- Alec Sulkin
- John Viener
- Patrick Warburton
- Adam West (actor)
- Robert Wu
A Fistful of Meg
- Alexandra Breckenridge
- Gary Cole
- Chris Cox
- Jeff Daniels
- Ralph Garman
- Scott Grimes
- Jonathan Morgan Heit
- Martha MacIsaac
- Patrick Meighan
- Christina Milian
- Emily Osment
- Danny Smith
- Alec Sulkin
- John Viener
- Patrick Warburton
- Robert Wu
Boopa-Dee Bappa-Dee
- Raoul Bova
- Jamie Denbo
- Chris Diamantopoulos
- Michelle Dockery
- Ginger Gonzaga
- Mark Hentemann
- Julius Sharpe
- Danny Smith
- André Sogliuzzo
- Alec Sulkin
- John Viener
- Patrick Warburton
Life of Brian
- John G. Brennan
- Yvette Nicole Brown
- Chris Cox
- Ralph Garman
- Ted Jessup
- Rachael MacFarlane
- Patrick Meighan
- Kevin Michael Richardson
- Julius Sharpe
- Tony Sirico
- Danny Smith
- Alec Sulkin
- John Viener
- Patrick Warburton
- Adam West (actor)
In Harmony's Way
- John G. Brennan
- Carrie Fisher
- Ralph Garman
- Gary Janetti
- Nick Kroll
- Rachael MacFarlane
- Conan O'Brien
- Tony Sirico
- Danny Smith
- Alec Sulkin
- John Viener
- Patrick Warburton
- Wellesley Wild
Christmas Guy
- Chris Cox
- Jackson Douglas
- Ralph Garman
- Joshua Rush
- Julius Sharpe
- Tony Sirico
- Danny Smith
- Alec Sulkin
- Lucas Van Wormer
- John Viener
- Wellesley Wild
- Robert Wu
Peter Problems
- Alexandra Breckenridge
- Steve Callaghan
- Carrie Fisher
- Ralph Garman
- Mark Hentemann
- Marlee Matlin
- Danny Smith
- Alec Sulkin
- John Viener
- Patrick Warburton
Grimm Job
- John G. Brennan
- Ralph Garman
- Brad Goreski
- Gary Janetti
- Emily Osment
- Julius Sharpe
- Danny Smith
- Alec Sulkin
- John Viener
- Patrick Warburton
- Adam West (actor)
- Ann Wilson
- Nancy Wilson
Brian's a Bad Father
- Ashley Benson
- Jim Breuer
- Chris Cox
- Jon Daly
- Ralph Garman
- Lucas Grabeel
- Scott Grimes
- Jonathan Morgan Heit
- Liam Neeson
- Emily Osment
- Kevin Michael Richardson
- Julius Sharpe
- Danny Smith
- Alec Sulkin
- John Viener
- Patrick Warburton
Mom's the Word
- Lauren Bacall
- Steve Callaghan
- Chris Cox
- Jackson Douglas
- Carrie Fisher
- Ralph Garman
- Ariana Grande
- Ted Jessup
- Patrick Meighan
- Julius Sharpe
- Danny Smith
- Alec Sulkin
- John Viener
- Patrick Warburton
- Adam West (actor)
3 Acts of God
- John G. Brennan
- Adam Carolla
- Chris Cox
- Ralph Garman
- Jonathan Morgan Heit
- Gary Janetti
- Emily Osment
- Julius Sharpe
- Danny Smith
- C.J. Spiller
- Alec Sulkin
- Nicole Sullivan
- John Viener
- Patrick Warburton
- Mario Williams
Fresh Heir
- Steve Callaghan
- Chris Cox
- Ralph Garman
- Scott Grimes
- Patrick Meighan
- Chris Sheridan
- Danny Smith
- Alec Sulkin
- John Viener
- Patrick Warburton
Secondhand Spoke
- Dee Bradley Baker
- Gary Cole
- Chris Cox
- Affion Crockett
- Cary Elwes
- Carrie Fisher
- Scott Grimes
- Marlee Matlin
- Rolando Molina
- Emily Osment
- Kevin Michael Richardson
- Julius Sharpe
- Alec Sulkin
- Josh Robert Thompson
- John Viener
- Patrick Warburton
Herpe, the Love Sore
- Alexandra Breckenridge
- Bryan Cranston
- Ralph Garman
- Ginger Gonzaga
- Scott Grimes
- Mark Hentemann
- Gary Janetti
- Freddy Rodriguez
- Julius Sharpe
- Danny Smith
- Patrick Stewart
- Tara Strong
- Alec Sulkin
- Jennifer Tilly
- John Viener
- Patrick Warburton
- Adam West (actor)
The Most Interesting Man in the World
- Alexandra Breckenridge
- Chris Cox
- Dennis Farina
- Carrie Fisher
- Chris Galya
- Ralph Garman
- Rachael MacFarlane
- Marlee Matlin
- Danny Smith
- Alec Sulkin
- Fred Tatasciore
- Jennifer Tilly
- John Viener
- Patrick Warburton
Baby Got Black
- John G. Brennan
- Chris Cox
- Jon Daly
- Ralph Garman
- Rachael MacFarlane
- Patrick Meighan
- Keke Palmer
- Kevin Michael Richardson
- Julius Sharpe
- Danny Smith
- Alec Sulkin
- John Viener
- Patrick Warburton
- Cedric Yarbrough
Meg Stinks!
- Gary Cole
- Jon Daly
- Chris Diamantopoulos
- Jackson Douglas
- Ralph Garman
- Jonathan Morgan Heit
- Catherine Reitman
- Julius Sharpe
- Danny Smith
- Jennifer Tilly
- John Viener
- Nana Visitor
- Patrick Warburton
- Adam West (actor)
- Heléne Yorke