David Vincent (43 episodes, 1967-1968)
Edgar Scoville / Stan Arthur (13 episodes, 1967-1968)
Alien / Alien Guard / Guard #2 / Third Alien (2 episodes, 1967)
Michael Tressider / Major Rick Graves (3 episodes, 1967)
Col. Archie Harmon / Fellows (3 episodes, 1967-1968)
Mr. Nexus / Ryder (Invader Leader) / The Invader Leader (3 episodes, 1967-1968)
Vice Chancellor Pierre Alquist / Magnus (3 episodes, 1967)
Ellie Markham / Sherri Vikor (3 episodes, 1967)
Bob Torin / Tony LaCava (3 episodes, 1967)
James Boland / Jim Bryce / Sheriff Lou Carver (3 episodes, 1967-1968)
Brother John / Police Sergeant / Prof. Charles McKay (3 episodes, 1967-1968)
Dr. John Slaton / Dr. Malcolm Gantley / Maj. Pete Stanhope (3 episodes, 1967-1968)
Air Crash Investigator / Brother James / Gen. Cullenbine (3 episodes, 1967-1968)
Alien Pilot / Policeman / Trooper (3 episodes, 1967-1968)
Guard / Policeman (3 episodes, 1967)
Deputy / Sergeant #2 (3 episodes, 1967-1968)
Hotel Detective / McNally / Prof. Eliot Kramer (3 episodes, 1967-1968)
First Reporter / Guard / Lt. Rawlings (3 episodes, 1967-1968)
Mail Truck Driver / Security Guard (3 episodes, 1967-1968)
Cameraman / M.P. / Man #2 (2 episodes, 1967)
Andrew Hatcher / Tom Wiley (2 episodes, 1967-1968)
Dr. Bob Vincent / Jeremy Mace (2 episodes, 1967)
Angela Smith / Prof. Pat Reed (2 episodes, 1967-1968)
Peter Kalter / Police Lt. Ben Holman (2 episodes, 1967-1968)
Adam Lane / Nat Greely (2 episodes, 1967-1968)
Anne Gibbs / Vikki (2 episodes, 1967-1968)
Joan Seeley / Stacy (2 episodes, 1967-1968)
Gus Flagg / Police Capt. Bill Battersea (2 episodes, 1967-1968)
Premier Thor Halvorsen (2 episodes, 1967)
Harry Ferguson / Taugus (2 episodes, 1967-1968)
Harland / Lucien (2 episodes, 1967-1968)
Edna Greely / Sally Palay (2 episodes, 1967)
Helen / Janet Garner (2 episodes, 1967-1968)
Allen Slater / Dr. Paul Mailer (2 episodes, 1967)
Dr. Harry Mills / Ed Gidney (2 episodes, 1967)
Dr. Samuel Crowell / Simon Carver (2 episodes, 1967)
Cyrus Stone / Professor Curtis Lindstrom (2 episodes, 1967)
Alan Landers / Gen. Samuel Arlington Concannon (2 episodes, 1967-1968)
Capt. Mitchell Ross / John Carter (2 episodes, 1967)
Hal / Steve Gibbs (2 episodes, 1967)
Dr. Stanley Frederickson / Hastings (2 episodes, 1967-1968)
John Corwin / Sawyer (2 episodes, 1967-1968)
Gen. Jonathan Blaine / George Grundy (2 episodes, 1967)
First Man / Garth (2 episodes, 1967)
Lieutenant Farley / Martin (2 episodes, 1967)
Dr. John Devin / Dr. Ken Harrison (2 episodes, 1967)
Emmett Morgen / Walt Anson (2 episodes, 1967)
John Finney / Kant (2 episodes, 1967)
Alien #1 / Eric H. Lund (2 episodes, 1967)
Jorden / Perry (2 episodes, 1967-1968)
Dorian / Spence (2 episodes, 1967)
Danny / Police Sgt. Leeds (2 episodes, 1967-1968)
Aide / Non Com in Charge (2 episodes, 1967)
Deputy Jim / Station Attendant (2 episodes, 1967)
Alien Deputy / Alien Driver (2 episodes, 1967-1968)
Butler / Homer Warren (2 episodes, 1967-1968)
Paul Meyers / Psychiatrist (2 episodes, 1967-1968)
Frankie Reed / Young Nat (2 episodes, 1967-1968)
Boy - Jimmy / Johnny (2 episodes, 1967-1968)
General / Professor Ed Harrison (2 episodes, 1967)
Hattie Willis / Nurse (2 episodes, 1967-1968)
Col. Newcomb / Gilbert (2 episodes, 1967)
Justice Department Agent (2 episodes, 1967)
Congressman Joe Bonning / Lt. Col. Howell (2 episodes, 1967)
Alien #1 / Capt. Burt Connors (2 episodes, 1967-1968)
Friendly Guard / Guard #1 (2 episodes, 1967)
Joe Manners / Man (2 episodes, 1967)
Cobbs / Sergeant (2 episodes, 1967)
Hank / Thatcher (2 episodes, 1967)
Alien in Charge / Carr (2 episodes, 1967)
Maid / Mama (2 episodes, 1967)
Andy / Jim Rogers (2 episodes, 1967)
Chauffeur / Journalist No. 2 (2 episodes, 1967-1968)
Jimmy / TV Man (2 episodes, 1967-1968)
Townsman / Webster (2 episodes, 1967)
Library Alien / Organist (2 episodes, 1967)
Alien / Weatherman (2 episodes, 1967)
Ed Larson / Reporter (2 episodes, 1967)
Reporter (1 episode, 1967)
Alien Air Force Major McEvoy / Alien Narrator (1 episode, 1967)
Reporter / Waiter (1 episode, 1967)
Court Clerk / Reporter (1 episode, 1967)
Juror / Townsman (1 episode, 1967-1968)
Tom Jessup (1 episode, 1967)
Annie Rhodes (1 episode, 1967)
Elyse Reynolds (1 episode, 1967)
Lloyd Lindstrom (1 episode, 1967)
Kathy Adams (1 episode, 1967)
Gavin Lewis (1 episode, 1967)
Laura Crowell (1 episode, 1967)
Nick Baxter (1 episode, 1967)
Dr. Katherina Serret (1 episode, 1967)
Barney Cahill (1 episode, 1967)
Margaret Cook (1 episode, 1967)
Morgan Tate (1 episode, 1967)
Laurie Keller (1 episode, 1967)
Brother Avery (1 episode, 1967)
Harry Swain (1 episode, 1967)
George Vikor (1 episode, 1967)
Evans (1 episode, 1967)
Vern Corbett (1 episode, 1967)
Father Joe (1 episode, 1967)
Charlie Gilman (1 episode, 1967)
Gale Frazer (1 episode, 1967)
Greg Lucather (1 episode, 1967)
Dr. Maria McKinley (1 episode, 1967)
Susan Carver (1 episode, 1967)
Ellen Woods (1 episode, 1967)
Beth Ferguson (1 episode, 1968)
Sarah Concannon (1 episode, 1968)
Dr. Ted Willard (1 episode, 1968)
James A. Baxter (1 episode, 1968)
Claudia Stone (1 episode, 1967)
Lisa (1 episode, 1967)
Eileen Brown (1 episode, 1967)
June Murray (1 episode, 1967)
Colonel Griffith (1 episode, 1967)
Blake (1 episode, 1967)
Grace Vincent (1 episode, 1967)
Paul Cook (1 episode, 1967)
Carol Tate (1 episode, 1967)
James Bernard (1 episode, 1967)
Oliver Ames (1 episode, 1967)
Wesley J. Sanders (1 episode, 1967)
Selene Lowell (1 episode, 1967)
Maj. Dan Keller (1 episode, 1967)
Sister Claire (1 episode, 1967)
General Theodore Beaumont (1 episode, 1967)
Madeline Flagg (1 episode, 1967)
Robert Morrison (1 episode, 1967)
Jack Palay (1 episode, 1967)
Will Hale (1 episode, 1967)
Eve Doneghan (1 episode, 1967)
Evelyn Bowers (1 episode, 1967)
Claire (1 episode, 1968)
Mike Calvin (1 episode, 1968)
Hank Willis (1 episode, 1968)
Celia Baxter (1 episode, 1968)
Jeff Brower (1 episode, 1968)
Miss Havergill (1 episode, 1967)
Neal Taft (1 episode, 1967)
Lewis Dunhill (1 episode, 1967)
Deputy Ambassador Peter Borke (1 episode, 1967)
Ramsey (1 episode, 1967)
Mr. Arius (1 episode, 1967)
Hardy Smith (1 episode, 1967)
Bill Shay (1 episode, 1967)
Warren Doneghan (1 episode, 1967)
Deputy Vern Hammond (1 episode, 1967)
Sheriff Gordon Clements (1 episode, 1967)
Mr. Burns (1 episode, 1967)
Dr. Grayson (1 episode, 1967)
A.J. Richards (1 episode, 1967)
Dr. MacLeuen (1 episode, 1967)
Tomkins (1 episode, 1967)
Arnold Andrew Warren (1 episode, 1968)
Father Paul (1 episode, 1968)
Capt. Jim Trent (1 episode, 1968)
Weller (1 episode, 1968)
Joan Surrat (1 episode, 1968)
Theodore Booth (1 episode, 1967)
Janet Wilk (1 episode, 1967)
The Minister (1 episode, 1967)
Diane Oberly (1 episode, 1967)
Police Sgt. Ernie Goldhaver (1 episode, 1967)
Mrs. Thorne (1 episode, 1967)
Joan Corman (1 episode, 1967)
Alien #1 (1 episode, 1967)
Detective Carter (1 episode, 1967)
Steve (1 episode, 1967)
Alien Capt. Taft (1 episode, 1967)
Alien Leader (1 episode, 1967)
Dr. Reynard (1 episode, 1967)
Luis Perez (1 episode, 1967)
Josef Dansk (1 episode, 1967)
Simms (1 episode, 1967)
Carl Wyeth (1 episode, 1967)
Deputy Wallace (1 episode, 1967)
William Mace (1 episode, 1967)
Sheriff Tom Halloway (1 episode, 1968)
Prof. Julian Reed (1 episode, 1968)
Ricky (1 episode, 1968)
Police Lt. John Mattson (1 episode, 1967)
Aunt Sara (1 episode, 1967)
Dr. Sam Larousse (1 episode, 1967)
Judge Simonson (1 episode, 1967)
Noel Markham (1 episode, 1967)
First Alien (1 episode, 1967)
Carl Vanders (1 episode, 1967)
Constable Gabbard (1 episode, 1967)
Professor Hellman (1 episode, 1967)
Lt. Alvarado (1 episode, 1967)
Darrow (1 episode, 1967)
Police Chief Sam Thorne (1 episode, 1967)
Danvers (1 episode, 1967)
Sheriff (1 episode, 1967)
Capt. Chester Albertson (1 episode, 1967)
Miguel (1 episode, 1967)
Joe McMullen (1 episode, 1967)
Dr. Martin Willard (1 episode, 1968)
Keith (1 episode, 1968)
William Gehrig (1 episode, 1968)
Cort (1 episode, 1968)
Hal (1 episode, 1967)
Hotel Clerk (1 episode, 1967)
Clare Lapham (1 episode, 1967)
Millington (1 episode, 1967)
Manager (1 episode, 1967)
Sgt. Bert Wisnovsky (1 episode, 1967)
Lieutenant James (1 episode, 1967)
Ed Tonkin (1 episode, 1967)
Nicole (1 episode, 1967)
Detective Harding (1 episode, 1967)
Lavin (1 episode, 1967)
Lieutenant (1 episode, 1967)
John Brandon / Man (1 episode, 1967)
Riley (1 episode, 1967)
Gen. Winters (1 episode, 1967)
Phil (1 episode, 1967)
Bowman (1 episode, 1967)
Bob Ferrara (1 episode, 1967)
Joey Taft (1 episode, 1967)
Torberg (1 episode, 1967)
Sgt. Walter Ruddell (1 episode, 1967)
Alquist's Aide (1 episode, 1967)
Conner (1 episode, 1967)
Mr. Nova (1 episode, 1967)
Argyle (1 episode, 1967)
Ollie (1 episode, 1968)
Lt. Conners (1 episode, 1968)
Hadley Jenkins (1 episode, 1968)
Post (1 episode, 1968)
Dom (1 episode, 1968)
Burt Newcomb (1 episode, 1968)
Officer Joe Nash (1 episode, 1968)
The Nun (1 episode, 1968)
Secretary Knute Rosmundson (1 episode, 1967)
Col. Harris (1 episode, 1967)
Kevin Ryan (1 episode, 1967)
Detective Reagan (1 episode, 1967)
Lena Lapham (1 episode, 1967)
Mrs. Brandon / Woman (1 episode, 1967)
Dr. Henry Thorne (1 episode, 1967)
Luz (1 episode, 1967)
Correll (1 episode, 1967)
Brennan (1 episode, 1967)
Mary Torin (1 episode, 1967)
Mavis (1 episode, 1967)
Older Alien (1 episode, 1967)
Leo Rinaldi (1 episode, 1967)
Superintendent (1 episode, 1967)
Groom (1 episode, 1967)
Louise (1 episode, 1968)
Coroner Braemer (1 episode, 1968)
Dorcas (1 episode, 1968)
Art Llewellan (1 episode, 1968)
Bill Concannon (1 episode, 1968)
Senator Robert Breeding (1 episode, 1968)
Bride (1 episode, 1967)
Charlie Coogan (1 episode, 1967)
Emissary (1 episode, 1967)
Kemper (1 episode, 1967)
Billy Stearns (1 episode, 1967)
John Nivin (1 episode, 1967)
Roy (1 episode, 1967)
Ed Peterson (1 episode, 1967)
Grayson (1 episode, 1967)
Dr. Frederick Rogers (1 episode, 1967)
Miss Cole (1 episode, 1967)
Houseboy (1 episode, 1967)
Leo (1 episode, 1967)
Guard #1 (1 episode, 1967)
Mrs. James (1 episode, 1967)
Charles Roselli (1 episode, 1967)
Dispatcher (1 episode, 1967)
Sentry (1 episode, 1967)
Carl Gidney (1 episode, 1967)
Journalist No. 1 (1 episode, 1967)
Proprietress (1 episode, 1967)
Doctor (1 episode, 1967)
Antique Store Proprietor (1 episode, 1968)
Casey (1 episode, 1968)
Earl (1 episode, 1968)
Secretary (1 episode, 1968)
Willard (1 episode, 1968)
Clerk - Alien (1 episode, 1968)
Jerry Burns (1 episode, 1967)
Police Lieutenant Eaton (1 episode, 1967)
Maj. Clifford Banks (1 episode, 1967)
Joe Bagely (1 episode, 1967)
J.O. Brock (1 episode, 1967)
Colonel (1 episode, 1967)
Cook (1 episode, 1967)
Head Alien (1 episode, 1967)
Sobbing Woman (1 episode, 1967)
Fred Wilk (1 episode, 1967)
Parking Attendant (1 episode, 1967)
Mrs. Endicott (1 episode, 1967)
Cab Driver (1 episode, 1967)
Eddie McKay (1 episode, 1968)
Security Officer (1 episode, 1968)
Blake (1 episode, 1968)
Dr. Bill Jacobs (1 episode, 1968)
Housekeeper - Irma (1 episode, 1968)
Amos Foster (1 episode, 1968)
Doctor Stark (1 episode, 1968)
(1 episode, 1968)
Minister (1 episode, 1967)
Alien #2 (1 episode, 1967)
Molly (1 episode, 1967)
Frank (1 episode, 1967)
Murphy (1 episode, 1967)
Miss Fox (1 episode, 1967)
Guard #2 (1 episode, 1967)
Frenchman (1 episode, 1967)
Miss Johnson (1 episode, 1967)
Colonel Ralph Gentry (1 episode, 1967)
Young Doctor (1 episode, 1967)
Paul (1 episode, 1967)
Boy (1 episode, 1967)
Male Nurse (1 episode, 1967)
Boy (1 episode, 1968)
Dorsey (1 episode, 1968)
Second Mate (1 episode, 1968)
Scientist (1 episode, 1968)
Michael Baxter (1 episode, 1968)
Alien Nurse (1 episode, 1968)
Human Capt. William Taft (1 episode, 1967)
Hypnotist Alien (1 episode, 1967)
Male Alien (1 episode, 1967)
Fred Wilk Sr. (1 episode, 1967)
Guide #1 (1 episode, 1967)
Danielson (1 episode, 1967)
MP Alien (1 episode, 1967)
Waitress (1 episode, 1967)
Nurse (1 episode, 1967)
Guard (1 episode, 1967)
Policeman (Frank) (1 episode, 1967)
Ambulance Driver (1 episode, 1967)
Lt. Sally Harper (1 episode, 1967)
Alien at Controls (1 episode, 1967)
Joey (1 episode, 1967)
Junior Officer (1 episode, 1968)
Station Attendant (1 episode, 1968)
Donner (1 episode, 1968)
Robertson (1 episode, 1968)
Mrs. Fielding (1 episode, 1968)
Alien Patient (1 episode, 1967)
Tressider's Man (1 episode, 1967)
Sgt. Hal Corman (1 episode, 1967)
Teenager (1 episode, 1967)
Major (1 episode, 1967)
Owens (1 episode, 1967)
Girl Alien (1 episode, 1967)
Fred Danielson (1 episode, 1967)
Guide #2 (1 episode, 1967)
Earl Garber (1 episode, 1967)
Alien Guard (1 episode, 1967)
Mrs. Wilk (1 episode, 1967)
Rescuer (1 episode, 1967)
Air Policeman (1 episode, 1968)
Stanley Leeds (1 episode, 1968)
Security (1 episode, 1968)
Hank Braden (1 episode, 1967)
Townswoman (1 episode, 1967)
Victoria (1 episode, 1967)
Arthur Singeiser (1 episode, 1967)
Mike (1 episode, 1967)
Newsman (1 episode, 1967)
Intern (1 episode, 1967)
John Lovell (1 episode, 1967)
Woman Attendant (1 episode, 1967)
Roberts (1 episode, 1967)
Walter (1 episode, 1968)
George - Waiter (1 episode, 1968)
Driver (1 episode, 1967)
Hippie (1 episode, 1967)
Townsman (1 episode, 1967)
Archie (1 episode, 1967)
Beggar (1 episode, 1967)
Attendant (1 episode, 1967)
Bartender (1 episode, 1967)
Deputy in Charge (1 episode, 1967)
Jury Member (1 episode, 1968)
Elizabeth Garber (1 episode, 1967)
Coroner (1 episode, 1967)
Corridor Guard (1 episode, 1967)
Brother (1 episode, 1967)
Second Reporter (1 episode, 1967)
Hotel Engineer (1 episode, 1968)
Third Reporter (1 episode, 1967)
Student (1 episode, 1967)
Fourth Reporter (1 episode, 1967)
Technician (1 episode, 1967)
Alien / Department of Justice Agent (1 episode, 1967)
Juror (1 episode, 1968)
Narrator (uncredited) (43 episodes, 1967-1968)
Introductory Narrator (uncredited) (42 episodes, 1967-1968)
Alien / Alien in Car / Attache / Photo Reporter / Policeman (uncredited) (7 episodes, 1967-1968)
Alien / Alien Shooting Morgan Tate's Car / Ed's Friend / Highway Patrolman Alien (uncredited) (6 episodes, 1967-1968)
Alien / Alien Committeeman / Doctor / Onlooker / Police Officer (uncredited) (5 episodes, 1967-1968)
Observer Outside Building / Photographer / Police Officer / Waiter (uncredited) (4 episodes, 1967-1968)
Diplomat / Juror / Military Officer / Summit Attendee (uncredited) (4 episodes, 1967-1968)
Arthur Coy / Diplomat / Film Crew Member / Security Guard (uncredited) (4 episodes, 1967-1968)
Mission Control Officer / Photographer / Reporter / Townsman (uncredited) (4 episodes, 1967)
Alien / Bartender / Townsman (uncredited) (4 episodes, 1967)
Alien / Alien Assassin / Alien Committeeman / Attendant (uncredited) (4 episodes, 1967)
Film Crew Member / Follower / Reporter (uncredited) (3 episodes, 1967-1968)
Alien / Juror / Pedestrian (uncredited) (3 episodes, 1967-1968)
Police Officer / Security Guard (uncredited) (3 episodes, 1967-1968)
Bar Patron / Commuter at Airport / Executive (uncredited) (3 episodes, 1967)
Alien / Alien Fighting with Kramer (uncredited) (3 episodes, 1968)
General / Reporter (uncredited) (2 episodes, 1967-1968)
Bartender / Passenger (uncredited) (2 episodes, 1967-1968)
Summit Attendee / Waiter (uncredited) (2 episodes, 1967-1968)
Harry - Lab Scientist / Security Guard (uncredited) (2 episodes, 1967-1968)
Alien (uncredited) (2 episodes, 1967)
Commuter / Townsman (uncredited) (2 episodes, 1967)
Believer / Summit Attendee (uncredited) (2 episodes, 1967)
Executive / Mission Control Officer (uncredited) (2 episodes, 1967)
Photographer / Tourist (uncredited) (2 episodes, 1967)
Believer / Mission Control Officer (uncredited) (2 episodes, 1967)
Summit Attendee / Waiter (uncredited) (2 episodes, 1967)
Guard / Sheriff (uncredited) (2 episodes, 1967)
Passenger / Summit Attendee (uncredited) (2 episodes, 1967)
Courtroom Spectator (uncredited) (1 episode, 1967)
Patrolman (uncredited) (1 episode, 1967)
Alien (uncredited) (1 episode, 1967)
Military Officer (uncredited) (1 episode, 1967)
Summit Attendee (uncredited) (1 episode, 1967)
Guard (uncredited) (1 episode, 1967)
Alien on Boat (uncredited) (1 episode, 1967)
Passerby (uncredited) (1 episode, 1967)
Police Officer (uncredited) (1 episode, 1967)
Trial Spectator (uncredited) (1 episode, 1967)
Workman (uncredited) (1 episode, 1967)
Pool Player (uncredited) (1 episode, 1967)
Lab Worker (uncredited) (1 episode, 1967)
Taxi Driver (uncredited) (1 episode, 1967)
EURAC Information Officer (uncredited) (1 episode, 1967)
Reporter (uncredited) (1 episode, 1967)
Man (uncredited) (1 episode, 1967)
Townsman (uncredited) (1 episode, 1967)
Bar Patron (uncredited) (1 episode, 1968)
Restaurant Patron (uncredited) (1 episode, 1968)
Townsman (uncredited) (1 episode, 1968)
Police Officer (uncredited) (1 episode, 1968)
Hotel Guest (uncredited) (1 episode, 1968)
Alien (uncredited) (1 episode, 1968)
Juror (uncredited) (1 episode, 1968)