From his days as a highly-touted football recruit at the University of Georgia to his years of domination in WCW and WWE, William Scott Goldberg has had a storied career. Sprinkle in a brief stint in the NFL as well as several on-screen appearances, and the two-time world heavyweight champion has seemingly done it all.

Yesterday, Goldberg turned 48, though you wouldn’t know it by looking at him. The son of a classical violinist and an obstetrician/gynecologist, Bill Goldberg was raised in the Jewish tradition in Tulsa, Okla., and has taken that identity with him throughout his career.

From wrapping himself in tifilin at the request of the widows of four rabbis who were murdered at a synagogue in Israel, to being an outspoken activist for the ASPCA, there’s more than meets the eye when it comes to this cat-loving, wrestler-spearing champion. In celebration of the big fellas’ bday, here are 20 Things You Didn’t Know About Bill Goldberg.