Characters played by Jeff Morrow
Dr. Leslie Gaskell
Characters played by Barbara Lawrence
Vera Hunter
Characters played by John Emery
Dr. Hubbell Eliot
Characters played by George O'Hanlon
Dr. Arnold Culver
Characters played by Morris Ankrum
Dr. Albert Stern
Characters played by Kenneth Alton
McCrary - The Pickup Driver
Characters played by John Parrish
Gen. Perry
Characters played by Jose Gonzales-Gonzales
Manuel Ramirez
Characters played by Richard Harrison
Pilot
Characters played by Marjorie Stapp
Nurse
Characters played by Robert Shayne
Air Force General
Characters played by Don Eitner
Weather Operator
Characters played by Gordon Mills
Sergeant
Characters played by John Halloran
Lab Central Security Guard
Characters played by Kenner G. Kemp
Producer of TV News Broadcast
Characters played by Robert Stevenson
New York TV Newscaster
Characters played by Baxter Ward
Second TV Newscaster