When an actor plays two parts in the same play/performance, the second
one is typically listed in the program as being played by "George
Spevlin."

This traditional theatrical name appeared first in the program for
"Brester's Millions" in 1906, a play by Winchell Smith based on a novel
by George Barr McCutcheon.

And how many of you thought I was going to say it was based on the
Richard Pryor movie?