Mark Harelik

as Rabbi Josiah (voice) (2 episodes)

as Liam Reynolds (2 episodes), as Liam Reynolds (archive footage) (uncredited) (1 episode)

as Dr. Hiriluk (1 episode), as Dr. Hiriluk (archive footage) (1 episode)

as Lyle (2 episodes)

as Richard (4 episodes)

as William Bloomfield (1 episode)

as Hank Greenberg

as Ronald Tulf (1 episode)

as Arthur Bloom (5 episodes)

as God (12 episodes), as Mark Harelik / God (3 episodes)

as Joseph Thompson

as Ed Muhl

as Joe (1 episode)

as Julian Voorhees (1 episode)

as Niles Harrington (1 episode)

as Peter (1 episode)

as Dr. Paul Stickley (14 episodes)

as Tall Abe Lincoln (1 episode)

as Herb Pennock

as Dr. Chandler (1 episode)

as Marvin Colgate (1 episode)

as Ship Captain

as David Thiel

as Martin

as Paul Houghton (1 episode)