The Tenth Level
Reparto
Ossie Davis
Reed
Viveca Lindfors
Mrs. Schnagel
Roy Poole
Dr. Goodman
Mike Kellin
Mancuso
Stephen Macht
Dahlquist
Charles White
Harry Vogel
William Shatner
Prof. Stephen Turner
Estelle Parsons
Crossland
Jeff Pomerantz
Professor
Damon Evans
John Travolta
Lab Technician (uncredited)
Lynn Carlin
Barbara
Richard McKenzie
Mr. Dennison
Fred J. Scollay
Dr. McBride
Lindsay Crouse
Karen