Paul F. Tompkins

Mr. Peanutbutter (voice) / Mr. Peanutbutter / Mr. Chocolate Hazelnut Spread (voice)

77 eps

Adam Conover

A Ryan Seacrest Type / Paparazzi Blue Jay (voice) / Paparazzi Blue Jay (voice) / Bradley Hitler-Smith (voice) / Ethan (voice) / Tour Guide / Paparazzi Blue Jay (voice) / (voice) / A Ryan Seacrest Type / Ethan (voice) / Ethan / A Ryan Seacrest Type / Paparazzi Blue Jay (voice) / Ethan / Guy Who Thinks Ghostwriters Write For Ghosts (voice) / Bradley Hitler-Smith / Mr. Peanutbutter's Nephews (voice) / A Ryan Seacrest Type / Reginald Rangoon III (voice)

17 eps

Keith Olbermann

Tom Jumbo-Grumbo (voice)

17 eps

Patton Oswalt

Pinky Penguin (voice) / Pig Doctor (voice) / Charlie Rose / Pinky Penguin / Doctor (voice) / Pinky Penguin / Laughing Crew Member (voice) / Pinky Penguin / Gary / Maggot Funeral Director (voice) / Pinky Penguin / Crab Guy (voice) / David / Pig Doctor (voice) / Pinky Penguin / Comedian (voice) / Neal McBeal (voice) / Dr. Pepin (Walnut Springs) (voice)

14 eps

Diedrich Bader

Judah Mannowdog (voice)

14 eps

Aparna Nancherla

Hollyhock Manheim-Mannheim-Guerrero-Robinson-Zilberschlag-Hsung-Fonzerelli-McQuack (voice) / Hollyhock (voice)

13 eps

Kristen Schaal

Sarah Lynn (voice) / Sabrina (voice) / Sarah Lynn / Sabrina (voice) / Sarah Lynn / Harper / Tori Spelling Fan (voice)

13 eps

J.K. Simmons

Lenny Turtletaub (voice)

13 eps

Raphael Bob-Waksberg

Charley Witherspoon (voice) / Dog #1 (voice) / Sarah Lynn's Stepfather (voice) / Disneyland DJ (voice) / (voice) / Simon (voice)

12 eps

Wendie Malick

Beatrice Horseman (voice) / Young Beatrice (voice)

11 eps

Stanley Tucci

Herb Kazzaz (voice)

11 eps