Theatre 625
The Magicians: The Incantation of Casanova
22 October 1967, BBC2
Role: Casanova

The Incantation of Casanova was part of a trilogy about famous magicians. Casanova was an amateur dabbler who used his magic prowess as a seductive device. Jacqueline Pearce played the girl he hoped to conquer.

From Radio Times via  JacquelinePearce.com:

Casanova, the hero, is perhaps best known for his amorous exploits, but he also had an interest in magic. Unlike the hero of the play, Casanova professed a total cynicism about magic and studied it only with the intentions of exploiting the credulity of his fellow men - and women.

Playing the most famous lover of all time is Jeremy Brett, seen recently on BBC TV in The Three Musketeers and now giving a highly praised performance as Orlando in the National Theatre's all-male production of As You Like It.

According to Wikipedia, the real-life Giacomo Casanova (1725-1798) was a famous Venetian adventurer, writer, and womanizer. He used charm, guile, threats, intimidation, and aggression, when necessary, to conquer women.

IMDb page // BFI page