Lizzy Caplan
Reagan Ridley (voice) (18 eps)
Clark Duke
Brett Hand (voice) (18 eps)
Christian Slater
Rand Ridley (voice) (18 eps)
Brett Gelman
Magic Myc (voice) (18 eps)
John DiMaggio
Glenn Dolphman (voice) (18 eps)
Tisha Campbell-Martin
Gigi Thompson (voice) (18 eps)
Bobby Lee
Dr. Andre Lee (voice) (18 eps)
Andy Daly
J.R. Scheimpough (voice) (18 eps)
Chris Diamantopoulos
ROBOTUS (voice) (18 eps)
Suzy Nakamura
Tamiko Ridley (voice) (7 eps)
Adam Scott
Ron Staedtler (voice) (5 eps)
Kayvan Novak
The Pope (voice) (3 eps)
James Adomian
Jesse Ventura / Alex Jones (voice) (3 eps)
Ron Funches
Mr. Mothman (voice) (2 eps)
Roger Craig Smith
Keanu Reeves / Johnny Depp (voice) (2 eps)
Carl Tart
Sporelando, Security Guard (voice) (2 eps)
Lauren Lapkus
(voice) (2 eps)
William Jackson Harper
Bryan (voice) / Bryan Bot (voice) (1 eps)
Henry Winkler
Melvin (voice) (1 eps)
Dan Lippert
Sasquatch (voice) (1 eps)
Michael-Leon Wooley
Power Struggle MC (voice) (1 eps)
Gary Cole
Brett's father (voice) (1 eps)
Alex Hirsch
Grassy Noel Atkinson (voice) (1 eps)
Zachary Quinto
Dr. Skullfinger (voice) (1 eps)
Timothy Simons
Flat Earth Leader (voice) (1 eps)
Kate Micucci
Charlie (voice) (1 eps)
Patton Oswalt
TSA Guard (voice) (1 eps)