Johnny Galecki is a Belgian-born American actor, best known for his roles as David Healy in Roseanne, Rusty Griswold in National Lampoon's Christmas Vacation, and as Leonard Hofstadter in The Big Bang Theory.
Okay so, imagine a Banjo Kazooie cast for a film or a series or whatever, just randomly thought about this. Actual voice actors or celebrity voice actors, whatever you feel like.
