Verda

Dee Hartford

Prof. John Robinson

Guy Williams

Dr. Maureen Robinson

June Lockhart

IDAK Omega-17

Dawson Palmer

Don West

Mark Goddard

Judy Robinson

Marta Kristen

Dr. Zachary Smith

Jonathan Harris

IDAK Alpha 12

Don Matheson

Penny Robinson

Angela Cartwright

Will Robinson

Bill Mumy

Robot

Dick Tufeld

Space Control Officer O-3

Sue England

O.M.

Walter Burke

Thief

Malachi Throne

Thor

Bern Hoffman

Lemnoc

Alan Hewitt

Enforcer Claudio

Allan Melvin

Niolani

Francine York

Hamish

Sean McClory

Keema

Dennis Patrick

Dr. Marvello

James Westerfield

Saticon 1

Jim Mills

Athena

Vitina Marcus

Sagramonte

Hans Conried

Jeremiah Smith

Henry Jones

Alonzo P. Tucker

Albert Salmi

Arcon

John Carradine

Adm. Zahrk

Ronald Long

Myko

Mike Kellin

Robot B-9

Bob May

Nerim

Strother Martin

Tiabo

Wally Cox

Sesmar

John Abbott

Zalto

Al Lewis

Morbus

Gerald Mohr

Hades Monster

Mike Donovan

Voice of Frog Alien

Ron Gans

Alien Leader

Peter Brocco

Fenestra

Melinda Fee

Judge Iko

Gregory Morton

Smeek

Jim Boles

Gundemar

Jefferson County

Elevator operator

Tiger Joe Marsh

Giant Bird Monster

Janos Prohaska

Urso

Harry Raybould

Cybernetic Leader

Michael Fox

Dr. Smith's Double

Charles Arthur

Slave

Ted Cassidy

Brynhilda

Sheila Allen

Saticon 2

John Hunt

Wooden Soldier

Larry Dean

Mr. Zumdish

Fritz Feld

Saticon 3

Paul Kessler

Deek

Craig Duncan

Princess

Maxine Gates

Dee

Mickey Manners

Vicho

Harry Varteresian

Geoo

Harry Monty

Handsome Alien

Bill Troy

Pleiades Pete

Ken Mayer

Nubu

Michael Greene

Alien Fighter

Chuck Roberson

Gromack

Ronald Weber

Barfly

Lane Bradford

Bartender

Eddie Quillan