Jane Fonda as Barbarella

John Phillip Law as Pygar

Anita Pallenberg as The Great Tyrant

Marcel Marceau as Professor Ping

Claude Dauphin as President of Earth

Milo O’Shea as Concierge / Durand-Durand

Véronique Vendell as Captain Moon

Serge Marquand as Captain Sun

Catherine Chevallier as Stomoxys

Marie Therese Chevallier as Glossina

David Hemmings as Dildano

Ugo Tognazzi as Mark Hand

Giancarlo Cobelli as Jean-Paul

Fabienne Fabre as La femme arbre

Corinne Fontaine as

Nino Musco as

Umberto Di Grazia as

Franco Gulà as

Jean Saudray as

Romolo Valli as

Robert Rietti as Professor Ping (voice)

Kitty Swan as Girl in Sogo (uncredited)

Fabio Testi as Tall Man at Party (uncredited)

Talitha Pol as Pipe-Smoking Girl (uncredited)

Antonio Sabàto as Jean-Paul (uncredited)

Honey Autumn as Bald Handmaiden at Sogovian Court (uncredited)

Diane Bond as (uncredited)

Silvana Venturelli as (uncredited)

Carla Cassola as (uncredited)

Joan Greenwood as The Great Tyrant (voice) (uncredited)

María Teresa Orsini as Suicide Girl (uncredited)

Chantal Cachin as Revolutionary (uncredited)