Mark Pellegrino stars as Deputy Bill Standall on "13 Reasons Why," the father of Alex Standall and a law enforcement officer whose position places him close to many of the events surrounding the students at Liberty High. Appearing throughout the series and becoming a main cast presence in the fourth season, Bill is portrayed as a serious, conflicted parent trying to protect his son while confronting the consequences of the crimes and secrets around him.
Before joining "13 Reasons Why," Pellegrino is already well known for a long television and film career that includes notable roles on "Lost," "Dexter," "Being Human," and "Supernatural." Over the years, he becomes recognized for playing intense, authoritative, or morally complicated characters, building a strong reputation across network, cable, and genre television.
In addition to his television work, Pellegrino appears in films such as "The Big Lebowski," "Mulholland Drive," and "National Treasure," while continuing to balance film roles with a steady stream of television appearances. His screen career spans decades and includes both recurring television roles and supporting parts in major studio and independent films.
Outside of "13 Reasons Why," Pellegrino continues working in television, film, and occasional producing projects, remaining a familiar presence across a wide range of genres. His role as Bill Standall adds a major dramatic father figure to a career already filled with memorable supporting and recurring characters. On "13 Reasons Why," he brings weight and tension to a character tied closely to one of the show’s central emotional storylines.
