Famous for his voice acting work in animated series and video games such as Planet Hulk, Resident Evil: Operation Raccoon City, Batman: Arkham City, and The Avengers: Earth's Mightiest Heroes, Wasserman is also notable for his stage work, which includes regional theater productions of Last Night of Ballyhoo, Hamlet, and The Beaux Stratagem.
After earning his bachelor's degree in theater from Temple University, he received a Master of Fine Arts degree in acting from the University of Missouri.
He received a John Barrymore Award nomination for his portrayal of songwriter Irving Berlin in a 2000 Wilma Theater staging of The Tin Pan Alley Rag.
He spent his early days in Kalamazoo, Michigan.
He and Djimon Hounsou both lent their voices to the animated miniseries Black Panther.