Dane DeHaan

as Roy Cohn

as Eric

as Detmar Blow

as Thaddeus 'Teddy' Schumacher

as Kanchuga

as Peter Bale

as Peter Riviera (10 episodes)

as Cole

as Jacob Pratt (6 episodes)

as Brad

as Kenneth Nichols

as Clayton Peterson (8 episodes)

as Self (archive footage)

as Jim Dooley (8 episodes)

as Carl E. (13 episodes)

as Chris Lynwood (8 episodes)

as Billy 'The Kid' Bonney

as John Joseph Alden (voice)

as Valerian

as Jan Van Loos

as Lockhart

as Victor (voice)

as Roman

as Paul