"Did I Do That?"See Reginald VelJohnson, Jaleel White and the Rest of the ‘Family Matters’ Cast Then and Now!

Can you believe it's been 27 years since Steve Urkel caused mayhem with the Winslow's on Family Matters?

Click through the gallery to see what show's cast — including Reginald VelJohnson, Jaleel White and more! — then and now!