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Jaleel White as Steve Urkel on <em>Family Matters</em>
Originally meant to be a supporting character, Jaleel White stole the show early on in the first season of Family Matters as nerdy next-door neighbor Steve Urkel. His trademark outfit included high-water pants, suspenders, wacky colored cardigans, and thick-framed glasses. Urkel spent countless hours convincing the Winslow kids and parents to love him. His trademark phrase — a drawn-out "Did I do that?" — was one that fans came to expect, and even adore.