Guest voice credits for Season 18
Yacht Rocky[]
- Dee Bradley Baker
- Chris Cox
- Bryan Cranston
- Ralph Garman
- Lucas Grabeel
- Mark Hentemann
- Sanaa Lathan
- Kenny Loggins
- Rachael MacFarlane
- Niecy Nash
- Alan Parsons
- Danny Smith
- Alec Sulkin
- Josh Robert Thompson
- Jennifer Tilly
- Nick Viall
- John Viener
- Patrick Warburton
Bri-Da[]
- Luke Adams
- Carlos Alazraqui
- Eugene Byrd
- Bryan Cranston
- Patrick Gallagher (Uncredited archive recording)
- Ralph Garman
- Scott Grimes
- Robert Herjavec
- Rachael MacFarlane
- Piotr Michael
- Kevin Michael Richardson
- Ben Stiller (Uncredited archive recording)
- John Viener
- Patrick Warburton
Absolutely Babulous[]
- Dee Bradley Baker
- Damien Fahey
- Ralph Garman
- Rachael MacFarlane
- Kevin Michael Richardson
- Danny Smith
- Josh Robert Thompson
- John Viener
Disney's The Reboot[]
- Richard Appel
- Dee Bradley Baker
- H. Jon Benjamin
- Chris Cox
- Bryan Cranston
- Damien Fahey
- Judy Greer
- Mark Hentemann
- Tom Hollander
- Rachael MacFarlane
- Martha MacIsaac
- Gary Newman
- Emily Osment
- Chris Parnell
- Chris Regan
- Kevin Michael Richardson
- Fred Tatasciore
- Emily Towers
- John Viener
- Dana Walden
- Patrick Warburton
Cat Fight[]
- Steve Callaghan
- Gary Cole
- Ralph Garman
- Artie Johann
- Kevin Michael Richardson
- Alec Sulkin
- John Viener
- Patrick Warburton
- Adam West (actor)
- Robert Wu
Peter & Lois' Wedding[]
- Damien Fahey
- Daisy Fuentes
- Mike Judge
- Phil LaMarr
- Kevin Michael Richardson
- Danny Smith
- Josh Robert Thompson
- Jennifer Tilly
- John Viener
- Patrick Warburton
Heart Burn[]
Shanksgiving[]
- Carlos Alazraqui
- Hank Azaria
- Travis Bowe
- Damien Fahey
- Nat Faxon
- Mark Hentemann
- Chris Regan
- Kevin Michael Richardson
- Alec Sulkin
- Fred Tatasciore
- Josh Robert Thompson
- Jennifer Tilly
- Emily Towers
- Danny Trejo
- John Viener
- Patrick Warburton
Christmas is Coming[]
- Ava Acres
- Dee Bradley Baker
- Travis Bowe
- Issac Ryan Brown
- Steve Callaghan
- Gary Cole
- Jimmy Connors
- Mark Hentemann
- Esther Ku
- Rachael MacFarlane
- Chris Parnell
- Danny Smith
- Alec Sulkin
- Josh Robert Thompson
- John Viener
- Robert Wu
Connie's Celica[]
- Dee Bradley Baker
- Steve Callaghan
- Gary Cole
- Mike Desilets
- Lucas Grabeel
- Amy K. Harmon
- Rachael MacFarlane
- Kim Parks
- Jay Pharoah
- Kevin Michael Richardson
- Josh Robert Thompson
- John Viener
- Patrick Warburton
- Lisa Wilhoit
Short Cuts[]
- John G. Brennan
- Steve Callaghan
- Keith David
- Lucas Grabeel
- Mark Hentemann
- Sean Kenin
- Ross Marquand
- Patrick Meighan
- Christopher Meloni
- Allison Munn
- Danny Smith
- Alec Sulkin
- Fred Tatasciore
- Josh Robert Thompson
- Pej Vahdat
- John Viener
- Patrick Warburton
Undergrounded[]
- Issac Ryan Brown
- Chris Cox
- Tom Devanney
- Ralph Garman
- Mark Hentemann
- Rachael MacFarlane
- Alec Sulkin
- Fred Tatasciore
- Jennifer Tilly
- John Viener
- Patrick Warburton
Rich Old Stewie[]
The Movement[]
- Travis Bowe
- Dan Castellaneta
- Ralph Garman
- Artie Johann
- Jerry Lambert
- Kevin Nealon
- Khary Payton
- Alex Pettyfer
- Kevin Michael Richardson
- Danny Smith
- Alec Sulkin
- Josh Robert Thompson
- Jennifer Tilly
- John Viener
- Patrick Warburton
Baby Stewie[]
- Dee Bradley Baker
- Steve Callaghan
- Mike Desilets
- Ralph Garman
- Brett Gelman
- Judy Greer
- Artie Johann
- Rachael MacFarlane
- Kevin Michael Richardson
- Alec Sulkin
- Jennifer Tilly
- Patrick Warburton
- Robert Wu
Start Me Up[]
- Dee Bradley Baker
- Travis Bowe
- Issac Ryan Brown
- Steve Callaghan
- Jeff Cesario
- Bryan Cranston
- Damien Fahey
- Ralph Garman
- Rachael MacFarlane
- Martha MacIsaac
- Ross Marquand
- Khary Payton
- Kevin Michael Richardson
- Danny Smith
- Alec Sulkin
- John Viener
Coma Guy[]
- Dee Bradley Baker
- Steve Callaghan
- Dan Castellaneta
- Chris Cox
- Damien Fahey
- Ralph Garman
- Phil LaMarr
- Alfred Molina
- Chris Regan
- Kevin Michael Richardson
- Danny Smith
- Alec Sulkin
- Jennifer Tilly
- John Viener
- Patrick Warburton
Better Off Meg[]
- Carlos Alazraqui
- Travis Bowe
- Gary Cole
- Damien Fahey
- Ralph Garman
- Lucas Grabeel
- Ali Hillis
- Esther Ku
- Kristen Li
- Rachael MacFarlane
- Chris Parnell
- Chris Regan
- Della Saba
- Chris Sheridan
- Danny Smith
- Josh Robert Thompson
- Jennifer Tilly
- John Viener
- Patrick Warburton
Holly Bibble[]
- Dee Bradley Baker
- Christian Bale (Uncredited archive recording)
- Stephanie Beatriz
- John G. Brennan
- Damien Fahey
- Ralph Garman
- Rachael MacFarlane
- Edie McClurg
- Liam McIntyre
- Chris Parnell
- Kevin Michael Richardson
- Danny Smith
- John Viener
- Patrick Warburton