Gray Powell

as Black Bart

as Shrapnel (voice)

as James

as Mark Griffin (7 episodes)

as Floyd Dantree (8 episodes)

as Dr. Noah Wolf (8 episodes)

as Moses

as Dan Smith

as Dr. Fremont (1 episode)

as Marlon

as Paul Bauer (24 episodes)

as George Estabrook (6 episodes)

as Professor Sharpe (1 episode)

as Father

as Narrator (voice)

as Stan

as Charlie (1 episode)

as Chad