Mark Allan Stewart is an American actor. He plays Toby Grasso in Vegas. He is a recurring co-star in the first season and debuts in the pilot episode. He has been active since 2000 and has also appeared in the films Juwanna Mann (2002) and Tangled Ever After (2012) and the series Infamous 2 (2011) and Saints Row: The Third (2011). He worked with Vegas star and producer Michael Chiklis on his earlier series The Shield. Stewart has also appeared in the series ER and The Unit.
