Age: 51
male
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.
Johnny Galecki
Sheldon
for Sheldon in Big Bang Theory alternate Cast
Suggested by scarecrow13
These are actors that were considered for the role that didn't get it
