Ed Nelson

as George Dressler

as General Sharman

as Dr. August Claiborne

as Jersey Callum

as General Stone

as D.A. Marcus Packard(3 eps)

as Victor Handler

as Governor Neilson

as Arthur Bandel(1 ep)

as Dr. Michael Rossi

as Raymond 'Ray' Bascomb(1 ep)

as Judge Willard Clinton(1 ep)

as Henry Post(1 ep)

as Mayor Albert Simpson(1 ep)

as Carl Turnball(1 ep)

as Bill Garnett(1 ep)

as Sgt. Steingrove(1 ep)

as George Dobbs

as Carl Strickland

as President Harry S. Truman

as Mike Danvers

as Joseph Locordolos

as Mark Kane

as Philip Mulwray

as Mr. Clarkson

as Jeb Amos(1 ep)

as Dr. Mike Wise

as George Beldridge

as Dr. Michael Rossi

as Dr. Rowan(1 ep)

as Paul Hamilton

as Chandler Dietrich

as George Starrett(1 ep)

as Admiral Harry Pearson

as Ray Hollister

as Robert Denby

as Carlton James

as Major John Alexander

as Edgar 'Bud' Clement(1 ep)

as Blake Sternlight(1 ep)

as Lt. Calvin Zenger

as Gene Kranz, Flight Director

as Paul Reston

as Nick Staffo

as Larry Kinner(1 ep)

as Warren Cole

as Sheriff Walter Raha(1 ep)

as Carl Nesbitt

as Dr. Harden

as Tom Burke (segment “Little Girl Lost”)(1 ep)

as Dr. Martin Becker

as Hank(3 eps)

as Abe Strayhorn(1 ep)

as Van Cleve(1 ep)

as Walter Swenson(1 ep)

as Hamilton(1 ep)

as Michael Rossi(514 eps)

as Cole Marteen

as James Priest

as Deke Allison(2 eps)

as Paul Clements(1 ep)

as Steve Edson(1 ep)

as Col. Luke Stone(1 ep)

as Tom Keller(1 ep)

as Alex Trevor(1 ep)

as Ralph Slocum(1 ep)

as Ray(1 ep)

as Neil Bracket(1 ep)

as Captain at Nightclub Announcing Call-up of Officers (uncredited)

as Jefty Bright(1 ep)

as Roger Sykes(1 ep)

as Dr. Keith Judge(1 ep)

as Nick Richards / Pete Jensen

as Peter Stull(1 ep)

as Brundage

as Chuck Palmer(1 ep)

as Gil Stoneham(1 ep)

as Chris Garland(1 ep)

as Brundage(2 eps)

as Charlie(1 ep)

as Tom Ellison / Daniel Le Jean(1 ep)

as Dino Michaelis

as Art Lacroix

as Alex Hendricks

as Chad(1 ep)

as The Stalker(1 ep)

as Clint Mowbree(1 ep)

as Doug(1 ep)

as Kirk(1 ep)

as Philip Redfield(1 ep)

as Tomstedter(1 ep)

as Sable(1 ep)

as Jim Tyler(1 ep)

as Norm Britt

as Sid - Henchman (uncredited)

as Lee Coogan(1 ep)

as Roy Corey(1 ep)

as Lt. Cory Clemens(1 ep)

as Sam Weber(1 ep)

as Chuck Whittaker(1 ep)

as Jedrow(1 ep)

as Browder(1 ep)

as Dr. Paul Kettering

as Cop #2

as Rick Connor

as Dave Randall

as Guard (uncredited)

as Blonde Tribe Member

as Slavo

as Cowboy(1 ep)

as 2nd Classmate (uncredited)(1 ep)

as Ward Nichols(1 ep)

as Dirk Blake(1 ep)

as Lenny Maston(1 ep)

as Police Officer 'Dutch' / Blind Man

as Cannon

as Tom

as Etienne (as Edwin Nelson)

as Pete

as Ensign Quinlan

as Nelson(1 ep)

as Jack Bowen(1 ep)

as Tantasi(1 ep)

as Vince Harwell(1 ep)

as Albie(1 ep)

as Police Sergeant

as Lee Prentice(1 ep)

as Rusk(1 ep)

as Perce(1 ep)

as Seth(1 ep)

as Burt Cury(1 ep)

as Tom(1 ep)

as Charlie

as Man in Ticket Line at Airport (uncredited)