Character Name : Jeff Knight

Original Name : Peter Graves

Gender : Male

Character Name : Dana

Original Name : Eileen Dietz

Gender : Female

Character Name : Lena

Original Name : Paulette Breen

Gender : Female

Character Name : George Walker

Original Name : Frank Ashmore

Gender : Male

Character Name : Dr. Jameson

Original Name : Dick Sargent

Gender : Male

Character Name : Dr. Nelson

Original Name : Zale Kessler

Gender : Male

Character Name : Clone

Original Name : William Bufkin

Gender : Male

Character Name : Jack

Original Name : Tony Haig

Gender : Male

Character Name : Senator

Original Name : Boyd Holister

Gender : Male

Character Name : Jake Noble

Original Name : Keenan Wynn

Gender : Male

Character Name : Anna Noble

Original Name : Lurene Tuttle

Gender : Female

Character Name : Ricky Knight

Original Name : James Mantell

Gender : Male

Character Name : Richard Knight

Original Name : David Hooks

Gender : Male

Character Name : Reporter Birney

Original Name : Frank Birney

Gender : Male

Character Name : Guide #1

Original Name : Rick DiAngelo

Gender : Male

Character Name : Guide #2 (as Gene Glazer)

Original Name : Eugene Robert Glazer

Gender : Male

Character Name : Richard (as Timothy Donnelly)

Original Name : Tim Donnelly

Gender : Male

Character Name : Walker Man

Original Name : Chuck Hayward

Gender : Male