Director
Richard A. Colla
DIRECTOR
Writer
Gene Roddenberry
WRITER
Gene L. Coon
Stars (in credits order)
Robert Foxworth
Questor
Mike Farrell
Jerry Robinson
John Vernon
Geoffrey Darro
Lew Ayres
Vaslovik
James Shigeta
Dr. Chen
Robert Douglas
Dr. Michaels
Dana Wynter
Lady Helena Trimble
Majel Barrett
Dr. Bradley
Ellen Weston
Allison Sample
Reuben Singer
Dr. Gorlov
Fred Sadoff
Dr. Audret
Gerald Peters
Randolph
Walter Koenig
Administrative Assistant Phillips
Edyie Girard
Stewardess
Alan Caillou
Immigration Officer
Lal Baum
Colonel Hendricks
Patti Cubbison
1st Secretary
Ian Abercrombie
Charlie (uncredited)
Arthur Tovey
Observer at craps table (uncredited)
