Guest voice credits for Season 8
Road to the Multiverse[]
- John G. Brennan
- Steve Callaghan
- Ralph Garman
- Mark Hentemann
- Kei Ogawa
- Danny Smith
- Alec Sulkin
- John Viener
- Patrick Warburton
- Kotaro Watanabe
- Adam West (actor)
- Jamison Yang
Family Goy[]
- Jeff Bergman
- John G. Brennan
- Max Burkholder
- Charles Durning
- Ralph Garman
- Mark Hentemann
- Danny Smith
- Ben Stein
- Alec Sulkin
- John Viener
- Patrick Warburton
- William Woodson
Spies Reminiscent of Us[]
- Dan Aykroyd
- John G. Brennan
- Chevy Chase
- Gary Cole
- Dimitri Diatchenko
- Ralph Garman
- Mark Hentemann
- James Lipton
- Henriette Mantel
- Chris Parson
- Alec Sulkin
- Nicole Sullivan
- John Viener
- Patrick Warburton
- Adam West (actor)
- Mae Whitman
Brian's Got a Brand New Bag[]
- Hart Bochner
- Alexandra Breckenridge
- James Burkholder
- Steve Callaghan
- George Christy
- Aimee Garcia
- Ralph Garman
- Paul Gleason
- Jack Samson
- Stacey Scowley
- Debra Skelton
- Danny Smith
- Alec Sulkin
- Reginald VelJohnson
- John Viener
- Nana Visitor
- Patrick Warburton
- Tico Wells
- Adam West (actor)
- Mae Whitman
- Bruce Willis
Hannah Banana[]
Quagmire's Baby[]
- Luke Adams
- John Bunnell
- Max Burkholder
- Noah Gray-Cabey
- Christine Lakin
- Danny Smith
- Brittany Snow
- Alec Sulkin
- John Viener
- Patrick Warburton
- Mae Whitman
- Tom Wilson
Jerome Is the New Black[]
- John G. Brennan
- Chris Cox
- Ralph Garman
- Mark Hentemann
- Kevin Michael Richardson
- Alec Sulkin
- John Viener
- Nana Visitor
- Patrick Warburton
Dog Gone[]
- Alexandra Breckenridge
- Jackson Douglas
- Ralph Garman
- Nathan Gunn
- Mark Hentemann
- Kel MacFarlane
- Chris Matthews
- Danny Smith
- Eddie "Piolin" Sotelo
- Alec Sulkin
- Fred Tatasciore
- John Viener
- Patrick Warburton
- Adam West (actor)
Business Guy[]
- Alexandra Breckenridge
- Chris Cox
- Johnny Galecki
- Ralph Garman
- Hugh Laurie
- Bobby Lee
- Jim Parsons
- Danny Smith
- Alec Sulkin
- John Viener
- Nana Visitor
- Patrick Warburton
Big Man on Hippocampus[]
- Alexandra Breckenridge
- Steve Callaghan
- Ralph Garman
- Mark Hentemann
- Dwayne Johnson
- Adrianne Palicki
- Rick Pasqualone
- Danny Smith
- Alec Sulkin
- John Viener
- Patrick Warburton
Dial Meg for Murder[]
- Lori Alan
- Dave Boat
- John G. Brennan
- Steve Callaghan
- Peter Chen
- Chris Cox
- Chace Crawford
- Camille Guaty
- Victor J. Ho
- Allison Janney (actress)
- Rachael MacFarlane
- Danny Smith
- Alec Sulkin
- John Viener
- Patrick Warburton
- Adam West (actor)
- Lisa Wilhoit
Extra Large Medium[]
- Lori Alan
- Jennifer Birmingham
- Jackson Douglas
- Andrea Fay Friedman
- Phil LaMarr
- Michele Lee
- Danny Smith
- Alec Sulkin
- John Viener
- Nana Visitor
- Patrick Warburton
- Adam West (actor)
Go, Stewie, Go![]
- Stephen Bishop
- Mo Collins
- Colin Ford
- Ralph Garman
- Lucas Grabeel
- Anne Hathaway
- Gary Janetti
- Danny Smith
- Alec Sulkin
- Jennifer Tilly
- John Viener
- Nana Visitor
- Adam West (actor)
- Mae Whitman
Peter-assment[]
- John G. Brennan
- Max Burkholder
- Richard Dreyfuss
- Carrie Fisher
- Ralph Garman
- Jim Goldenberg
- Max Hodges
- Maurice LaMont
- Harvey Levin
- Jack Samson
- Will Shadley
- Anthony Skillman
- Danny Smith
- Alec Sulkin
- Steve Urquilla
- John Viener
- Patrick Warburton
- Adam West (actor)
Brian Griffin's House of Payne[]
- Jennifer Birmingham
- Ralph Garman
- Mark Hentemann
- Rob Lotterstein
- Danielle Panabaker
- Charlie Sheen
- Chris Sheridan
- Danny Smith
- Alec Sulkin
- Jennifer Tilly
- John Viener
- Patrick Warburton
- Wellesley Wild
- Elijah Wood
- James Woods
April in Quahog[]
- Lori Alan
- John G. Brennan
- James Burkholder
- Chris Cox
- Ralph Garman
- Anne Hathaway
- Mark Hentemann
- Phil LaMarr
- Jason Mraz
- Chris Sheridan
- Danny Smith
- Alec Sulkin
- John Viener
- Patrick Warburton
- Adam West (actor)
Brian & Stewie[]
- No guest voices
Quagmire's Dad[]
- Ralph Garman
- Chris Sheridan
- Danny Smith
- Alec Sulkin
- John Viener
- Patrick Warburton
- Adam West (actor)
- Wally Wingert
The Splendid Source[]
- Marc Alaimo
- Gary Cole
- Chris Cox
- Ralph Garman
- Ioan Gruffudd
- Sanaa Lathan
- David Lynch
- Patrick Meighan
- Kevin Michael Richardson
- Danny Smith
- Alec Sulkin
- Jennifer Tilly
- John Viener
- Patrick Warburton
- Wally Wingert
Something, Something, Something, Dark Side[]
- H. Jon Benjamin
- John G. Brennan
- John Bunnell
- Kirker Butler
- James Caan
- Chris Cox
- Jackson Douglas
- Joe Flaherty
- Ralph Garman
- James "Cannonball" Greene
- Mark Hentemann
- Phil LaMarr
- Dolph Lundgren
- Brigitte Nielsen
- Michael Pataki
- Kevin Michael Richardson
- George Rogan
- Tom Selleck
- Chris Sheridan
- Danny Smith
- Alec Sulkin
- John Viener
- Patrick Warburton
- Wally Wingert
- James Woods