Paul Blaisdell (44 episodes)

Narrator (1 episode)

COO Peter O'Farrell (1 episode)

Herb Walsh (1 episode)

Lawrence Jarvis (1 episode)

Control

(1 episode)

C.A. Thomas

G. William Howe (1 episode)

Elias Johnson

Control

(1 episode)

(1 episode)

Control (29 episodes)

Lt. Jack Curtis (13 episodes)

Horace Bixby (1 episode)

Owen Hooper

Moody

Dan Stokely

Charles Cole

Dr. Phillip Reynolds

Howard

Carl Solborg

Harold

(1 episode)

Alex Norton

(2 episodes)

Major Reason

John Phillips

Warren Claman

Sgt. Bill Winston (1 episode)

Dave Fenner

Self (1 episode)

George Edward Diamond (1 episode)

Chief Carl Yaring (1 episode)

Tony Gunther

Fred Martin (1 episode)

(1 episode)

(1 episode)

Peter Murphy

Gary Seven (1 episode)

Darcy (1 episode)

Marshall Virgil Packer (1 episode)

(1 episode)

Peter Murphy / Mark Wainwright (18 episodes)

Hank Donner

Bill Talion

(2 episodes)

Hibbard (1 episode)

Capt. Robert Ives (1 episode)

Luke Frazer (1 episode)

Yancy Tyce (1 episode)

Brigadier General Frank Savage (32 episodes)

Eric Sloane

Douglas Stansfield (1 episode)

George Calhoun (1 episode)

Matt Denning (1 episode)

Lee Knight (1 episode)

Dr. Charles Howard

Sgt. Banning

Don Colley (1 episode)

(2 episodes)

Mooney (1 episode)

(1 episode)

Detective Steve Carella (30 episodes)

(1 episode)

Jed Trask (1 episode)

Gunny O'Riley (1 episode)

John Dundee (1 episode)

James Wilson (1 episode)

(1 episode)

Lieutenant Brian Rome (1 episode)

Lieutenant Brian Rome

Jared Corning (1 episode)

Steve Carella

Dr. Scott Nelson

(322 episodes)