Lester Chaykin (Thanx Akira) is from Another World
Conrad is from Flashback
contrary to popular belief, they re NOT the same guy, and Flashback is NOT a sequel to Another World.
There's a sequel for Another World, called "Heart of Alien", published only for the Sega CD, this one features Lester Chaykin too.
And there's a sequel for Flashback, called "Fade to Black", published for many systems, this one features Conrad too.