Harewood has acted in countless movies and TV shows. He also has been a voice actor for more than 20 years, working in animated films and TV shows. He has worked on Aladdin (1992), Teenage Mutant Ninja Turtles (1989) as The Shredder, Darkwing Duck (1991-92), The Batman (2004-08) as Martian Manhunter and many other shows.
Payton is mainly recognized for his many roles as Black superheroes on DC animated TV shows. In Teen Titans (2003-07) and Teen Titans Go! (2013), he is Cyborg. His voice brings the character to life and makes him unforgettable. Payton has also voiced Aqualad and Black Manta in Young Justice (2011-12).