Richard
Charles
DA Noah Cahill (2 episodes)
Gavin
Carter Albrecht (4 episodes)
Mark Felt (1 episode)
Vincent Franzen (1 episode)
Don Dunker
Fletcher Maxwell (2 episodes)
Vincent Franzen (5 episodes)
Hansen Foundry (7 episodes)
David Golan (1 episode)
Peter
Colonel Stallings (3 episodes)
Claude Nostromo (1 episode)
Albert Stanton (6 episodes)
Brother Miller
Peter (2 episodes)
John Forstell (19 episodes)
Tom Macon (10 episodes)
Joel Fitzgerald (1 episode)
Henry Blomfeld (5 episodes)
Harold Balinger (8 episodes)
Daniel Whitehall (9 episodes)
Don Pedro
Cole Edwards (1 episode)
Sergeant Wheatley (1 episode)
Hayes Flynn (4 episodes)
Raymond "Ray" Haffner (5 episodes)
Mark Shapiro
Damien Karp (40 episodes)
Franklin Citron (1 episode)
Barnes (voice)
Jason Pillar (8 episodes)
Darren Musk (1 episode)
Cameron Talbot (1 episode)
FBI Agent Stone (1 episode)
Chad Billmeyer (1 episode)
Laurence Dominic (10 episodes)
Craig Bridges (1 episode)
Jack Vasser (13 episodes)
Paul
Voice of Harvey
Dr. Martin Schaer (1 episode)
Eric Hayes (1 episode)
Major Bryce Ferguson (1 episode)
Dr. Kenneth Hill (1 episode)
Ralph
John Aaron
Skip Naughton
Jared Swanstrom (1 episode)
Gordon Kimball (1 episode)
'Algernon'
Dr. Mike Gordon (3 episodes)
Duty Officer
Officer
Officer David Burress
Rachel's Boyfriend (1 episode)
Will Raymond (2 episodes)
Doug Clifson
Terry Crowley (3 episodes)
Andrew Farmer
Alan Caldwell (1 episode)
Phil
Mike Kaputo (1 episode)
Harvey
Mike Kellerman
Stuart Collins (19 episodes)
Eddie Brannigan Jr.
Harry Winslow
Clay Devereaux
Mike Kellerman (67 episodes)
Thomas Rafferty
Jeffrey Baker
Ben Constant
Coast Guard Chief
Charlie
Stephen Sinclair (2 episodes)
Christopher Baylor (1 episode)
Mr. Klein (1 episode)
Leslie Harmon
Virgil Hoogesteger
Gary Farrell
Charlie (1 episode)
Gary Farrell (1 episode)