From Saweetie to Karrueche Tran, All the Famous Faces on "Bel-Air"

Marlon Wayans appears in the season one finale as Will's dad, Lou. Will's mom and uncle had led him to believe that Lou had abandoned the family, but in this episode, Will finds out that's not the truth. Lou was incarcerated and didn't want Will to see him that way. It's unclear if he'll appear again in future episodes.