Anthony Quayle
Professor Griffith
Ivo Garrani
Prime Minister
Virginia McKenna
Eva Caine
Vittorio Fanfoni
First Asylum Patient
Eugenio Masciari
Second Asylum Patient
Sergio Serafini
Third Asylum Patient
Domenico Di Costanzo
Fourth Asylum Patient
Geoffrey Keen
Gynecologist
Allan Hendrick
Fanatical Demonstrator
Caroline Langrishe
Girlfriend (as Caroline Horner)
Penelope Horner
Caine’s Secretary
Richard Cornish
1st Journalist
Denis Lawson
2nd Journalist
John Bancroft
3rd Journalist