Jeleel

Jaleel Ahmad White (born November 27, 1976) is an American actor, writer and producer.

In 1989, he was cast in the role of Steve Urkel on the sitcom Family Matters. The character was originally intended to be a one-time guest appearance on the show; however, he was an instant hit with audiences and White became a regular cast member

https://en.wikipedia.org/wiki/Jaleel_White