The Sleep Files: Altered States

Nigel Anthony Self - Narrator (voice)

Rosalind Cartwright Self - (as Dr Rosalind Cartwright)

Denise Corke Self - Michel Corke's Mother

Michel Corke Self (archive footage)

Penny Corke Self

Floyd S. Cornelison, Jr., M.D. Self (as Dr Floyd Cornelison)

William Hechter Self - Defence Lawyer

Neil Kavey Self (as Dr Neil Kavey)

Charles T. Tart Self (as Dr Charles Tart)

Mark Mahowald Self - (as Dr Mark Mahowald)

Ken Martin Self (as Dr Ken Martin)

Harvey Moldofsky Self (as Dr Harvey Moldofsky)

Joann Mosby Self - Michel Corke's Sister

Bob Smithers Self - Carl's Father

Liz Smithers Carl's Mother

Peter Tripp Self (archive footage)