Glenn Close
— Narrator (voice)
Joan Cassidy
— Self (archive footage)
David Hyde Pierce
— Dr. Franklin E. Kameny (voice)
T. R. Knight
— Drew Ference (voice)
Joseph McCarthy
— Self (archive footage)
Cynthia Nixon
— Madeleine Tress (voice)
Zachary Quinto
— Dennis Flinn (voice)
David K. Johnson
— Self
Lillian Faderman
— Self
John D'Emilio
— Self
Bartley A. Fugler
— Self
Victor Ference
— Self
Franklin Kameny
— Self (archive footage)