Mark Tallman is an American television and film actor. His television roles include First Wives Club (2019-2022) and Your Friends & Neighbours (2025-present).
Tallman played high school sports at Carthage Senior High School in New York State, especially American football, basketball, and baseball. He went on to attend Bucknell University in Pennsylvania, where he played as a linebacker in Division I College football for the Bucknell Bison football team.
After coaching football at St. Lawrence University, in Canton, New York, Tallman moved into acting and had a recurring role on the ABC soap opera All My Children as Kyle. Tallman appeared as Detrell Thorne, father of the lead character, Robbie in Rise, as well as State of Affairs, for NBC. Tallman also had television roles on AMC series Dietland and CBS series The Good Fight. His film roles included Rough Night, and was also a voice actor in the video game Grand Theft Auto V. He was also a voice actor on Red Dead Redemption II.
Tallman appeared as David Montgomery in three series of First Wives Club for Netflix. In March 2024, he was cast as Nick Brandis, a former NBA All-Star and successful entrepreneur in Your Friends & Neighbors written by Jonathan Tropper for Apple TV+ alongside Amanda Peet and Jon Hamm. Broadcast in 2025, he returned for the second series in 2026, with the series renewed for a third that year.
He later married Jessica and lived in El Paso, Texas.