|Place of origin:||Earth|
|Appearance:||The Reign of Terror|
|Main actor:||Donald Morley|
Jules and Jean rescued Barbara Wright and Susan from the guillotine and brought them to their safe house. He promised to find Ian and the First Doctor for them. When Jules found Ian, Ian named Jules as someone who would help him get Webster's dying message to James Stirling, but Jules didn't know who Stirling was.
Jules rescued Ian when he fell into Léon Colbert's trap. Jules killed Léon and the two soldiers with him.
Jules was suspicious when the Doctor brought Lemaitre to the safe house, but when they learned that Lemaitre was Stirling, Jules helped set up a plan for Barbara, Ian and himself to attend a meeting between Paul Barras and the next possible ruler of France, Napoléon Bonaparte.