John Arnold DeMarco is a man who believes he is Don Juan, the greatest lover in the world. Clad in a cape and mask, DeMarco undergoes psychiatric treatment with Dr. Jack Mickler to cure him of his apparent delusion. But the psychiatric sessions have an unexpected effect on the psychiatric staff and, most profoundly, Dr Mickler, who rekindles the romance in his complacent marriage.
as Don Juan DeMarco
as Dr. Jack Mickler
as Marilyn Mickler
as Dona Ana
as Dr. Paul Showalter
as Doña Inez
as Doña Julia
as Dr. Bill Dunsmore
as Sultana Gulbeyaz
as Woman in Restaurant
as Detective Sy Tobias
as Grandmother DeMarco
as Don Alfonzo
as Rocco Compton
as Mariachi Singer
as Judge Ryland
as Don Antonio
as Maitre D' (uncredited)