Narrator (voice)
Nathalie Jadeau
Self - Sheffield Centre for HIV and Sexual Health
Jo Adams
Self
Joan Wyndham
Helen O'Connell
Self - New York Times Columnist
Natalie Angier
Melissa Cull
Self - Urologist
François Giuliano
Ravyn Godwin
Self - University of Amsterdam Professor
Ellen Laan
Self - Professor of Psychiatry at New York University School
Leonore Tiefer
Kay Wilson
Radha Wilson
Director
Variety Moszynski
Producer
Tamsin Moufflet
Writer
Stephen Firmin