The Tenth Level

Elenco

• 
  William ShatnerProf. Stephen Turner
• 
  Lynn CarlinBarbara
• 
  Ossie DavisReed
• 
  Viveca LindforsMrs. Schnagel
• 
  Estelle ParsonsCrossland
• 
  Roy PooleDr. Goodman
• 
  Mike KellinMancuso
• 
  Richard McKenzieMr. Dennison
• 
  Fred J. ScollayDr. McBride
• 
  Stephen MachtDahlquist
• 
  Lindsay CrouseKaren
• 
  Charles WhiteHarry Vogel
• Gregory AbelsLab Technician
• Robert BurrMr. Hughes
• Tom QuinnBully in Bar
• Billie Lou WattMrs. Carol
• Michael Howard
• 
  Jeff PomerantzProfessor
• 
  Damon Evans
• W.T. MartinMario, the Waiter
• Gary CooksonLab Technician
• 
  John TravoltaLab Technician (sem créditos)

Equipe Técnica