Lucia Lucas
— Lili Elbe
Sylvia D'Eramo
— Gerda Wegener
Mack Wolz
— Anna Larsen Bjørner/Mother Wegener/Young Woman
Jennifer Panara
— Hélène Allatini
Brian Michael Moore
— Claude Lejeune
Théo Imart
— Danish Countess/Dagmar/Matron
Sam Taskinen
— Marius Wegener
Kristján Jóhannesson
— Christian X/Art Critic/Major Fernando Porta
David Maze
— Eric Allatini
Msimelelo Mbali
— Professor Warnekros
Aria Pecaj
— Dagmar's Daughter
Elias Podolski
— Young Lili
Gustav Seyfert
— Dagmar's Son