Stars (in credits order)
Katja Schuurman
Self
Ingrid Ranka de Hullu
Self - Zen Nun
Henk Brauers
Self - Driving Instructor, Maastricht University
Linda Prosman
Frans Duijts
Self - Memory Trainer
Sasha Velgersdijk
Self - Insomniac
Eus Van Someren
Self - Psycho-Physiologist
Eva Doornewaard
Self - Narcoleptic
Christian Doeller
Self - Principal Investigator
Jaap Murre
Self - Professor of Theoretical Neuropsychology
Karin Roelofs
Self - Professor of Experimental Psychopathology
Hugo Vos
Marijke Gordijn
Self - Chronobiologist
Vanessa van Ast
Self - Postdoctoral Researcher
Henk-Jan Zwolle
Self - Exercise Physiologist
Kim Dekker
Self - Sleep Researcher
John Taverniers
Self - Psychologist
Liesbeth van Rossum
Self - Internist-Endocrinologist, Erasmus MC
Eric Prosman
Self - International Checkers Grandmaster
Rob van Viegen
Self - Flight Instructor
Arko van Brakel
Self - Entrepreneur
Roy Kessels
Self - Professor of Neuropsychology
Jan Visser
Self - Dog Wrangler
Kim Pieters
Erwin van den Eshof
Self - Horror Director
Leo Alkemade
Winston Gerschtanowitz
Self - Katja's Friend
Eduard Coblijn
Self - Professional Interrogation Behavioral Teacher
Iris Meeuwisse
Annette Heldens
Self - Psychologist and Coach
Nico van Straalen
Self - Evolutionary Biologist
Guido van Wingen
Self - Neuroscientist
Job Boersma
Self - Psychologist and Author
Sofie Noiron
Self - Victim of Flesh-Eating Bacteria
Dries Budding
Self - Clinical Microbiologist
Wim Veling
Self - Psychiatrist, UMCG
Freek van Noortwijk
Self - Katja's Boyfriend
Mark Mieras
Self - Science Journalist and Author
Geert Jan Jansen
Self - Master Forger
Koen Schruers
Self - Psychiatrist
Pacelle van Goethem
Self - Voice Pathologist
Jop de Vrieze
Self - Medical Biologist and Science Journalist
Bruno Verschuere
Self - Researcher, Universy of Amsterdam
Willem Brouwer
Self - Interrogation Techniques Teacher
Chris Callewaart
Self - Dr. Armpit
Annemarie de Vries
Self - Germophobe