Nesse filme, Monty Python ganha a tela para satirizar a medicina, a igreja, os militares, o sexo, e tudo o que é levado a sério demais pelos seres humanos normais.
Eric IdleGunther / Fish #3 / 'Meaning of Life' Singer / Mr. Moore / Mrs. Blackitt / Watson / Blackitt / Atkinson / Perkins / Victim #3 / Front End / Mrs. Hendy / Man in Pink / Noël Coward / Gaston / Angela
Graham Chapman (I)Chairman / Fish #1 / Doctor / Harry Blackitt / Wymer / Hordern / General / Coles / Narrator #2 / Dr. Livingstone / Transvestite / Eric / Guest #1 / Arthur Jarrett / Geoffrey / Tony Bennett
John CleeseFish #2 / Dr. Spencer / Humphrey Williams / Sturridge / Ainsworth / Waiter / Eric's Assistant / Maître D' / Grim Reaper
Michael PalinWindow Washer / Harry / Fish #5 / Mr. Pycroft / Dad / Narrator #1 / Chaplain / Carter / Spadger / Regimental Sergeant Major / Pakenham-Walsh / Rear End / Female TV Presenter / Mr. Marvin Hendy / Governor / Leaf Son / Debbie Katzenberg
Terry GilliamWindow Washer / Fish #4 / Walters / Middle of the Film Announcer / M'Lady Joeline / Mr. Brown / Howard Katzenberg
Terry Jones (I)Bert / Fish #6 / Mum / Priest / Biggs / Sergeant / Man with Bendy Arms / Mrs. Brown / Mr. Creosote / Maria / Leaf Father / Fiona Portland-Smythe