|"Shhh... he's sleeping."|
|1st appearance:||Past Tense|
|Voice Artist:||Lisa Hammer|
Leslie Cohen was a student at State University that Mike Sorayama had a huge crush on. She was being tutored by Mike, but had a wild night with Brock. The noise of which kept Dr. Venture up almost all night.
Later in life Leslie had a restraining order taken out against Mike due to his endless obsession with her.
Mike was so obsessed with Leslie that he not only programmed his robots to hate his friends (because they supposedly did him wrong concerning Leslie), but he even created 4 Leslie Cohen-bots and had artwork done of her. The Leslie-bots were eventually destroyed by The Original Team Venture.