Dr. Martin Best (3 episodes)

Joseph Warren (voice) / John Peters (voice) / David Ramsey (voice) (2 episodes)

voice (3 episodes)

Gabriel Wharton (9 episodes)

Max Peterson (6 episodes)

Damian

Isaac

Governor Daniel Dandon (9 episodes)

Daniel Hersl (6 episodes)

Vince Baldi (1 episode)

Self - Guest (1 episode)

Matt Logan (10 episodes)

Casey Close (3 episodes)

Narrator (8 episodes)

Coach Gaines

Dr. Jerome Oziel (3 episodes)

Blake (8 episodes)

Jay Gould (1 episode)

Tom Seymour

Self - Panelist (1 episode)

Duke Snyder (5 episodes)

Taub

Chris

Bruce Brooks

Bryan Kelder

Blake (8 episodes)

Dan Logan (10 episodes)

Self (1 episode)

Phil

Self (2 episodes)

Gary Newman

Self - Narrator (voice) (14 episodes)

Bart

Tom Peterson

Subject #2

Will Gardner (107 episodes)

Director (1 episode)

Sean Kelley (1 episode)

Jake (8 episodes)

Ray Jones (2 episodes)

Thanks

Paramedic

Forrest Mead

Detective Fowler

Lou

T.J. McCabe

Dave Isay

Peter Silverblatt

Agent Barker

Dan Rydell (45 episodes)

Adam

Brush Brody

Eddie Jordan

Joe Talbot

Charlie Dunlap

Tyn

Bruce (uncredited)

Randy

Eddy

Jody

Mort Golden

Bryan

Andrew Goodman

Knox Overstreet

Iggy