Willis

Xavier (1 episode)

John Baylor (1 episode)

William Bourcier

Tom Hackett (10 episodes)

Robert Stergen

Quentin Lance (2 episodes)

Quentin Lance (2 episodes)

Emergency Room Doctor

Quentin Lance (141 episodes)

Jack St. Cloud (1 episode)

Tom Laudner (1 episode)

Metallo (voice)

Clark Quietly (8 episodes)

Larry Newley (1 episode)

Julian Larson (1 episode)

Julian Larssen (1 episode)

Christian Harper (6 episodes)

Tony Enright (1 episode)

Tony Kadjic (2 episodes)

Guest #3 / Business Man #2 (voice)

Thomas O'Neill (1 episode)

Shane Healy (20 episodes)

Terrence Hill (9 episodes)

Harry Dresden (12 episodes)

Dr. Polanski (1 episode)

Jonas Exiler

Hearst's man needling Cornishmen (2 episodes)

Walt Samson

Henry Stoller / Henry Stoller's Son (1 episode)

Jack Quinn

Stephen Saunders (10 episodes)

Jeremy Lawson (5 episodes)

Dr. Matt Slingerland (16 episodes)

Dan

Captain Andrew Russell

John

Gino (1 episode)

Liam McGregor (4 episodes)