The Sleep Files: Altered States
- Especial de TV
- 1998
Rosalind Cartwright
- Self - Rush Presbyterian Hopital, Chicago
- (as Dr Rosalind Cartwright)
Michel Corke
- Self
- (metraje de archivo)
Floyd Cornelison
- Self - Professor of Psychiatry, Jefferson Medical College, Philadelphia
- (as Dr Floyd Cornelison)
Mark Mahowald
- Self - The Minnesota Regional Sleep Disorders Clinic
- (as Dr Mark Mahowald)
Ken Martin
- Self - Psychiatrist
- (as Dr Ken Martin)
Harvey Moldofsky
- Self - The Sleep Centre, Toronto Hospital
- (as Dr Harvey Moldofsky)
Peter Tripp
- Self
- (metraje de archivo)
Graham Turral
- Self - Clinical Psychologist
- (as Dr Graham Turral)
Louis Jolyon West
- Self - Professor of Psychiatry, University of California, LA
- (as Dr Louis 'Jolly' West)