Martin Riggs is a fictional character from the Lethal Weapon film series created by Shane Black. Riggs was originally played by actor Mel Gibson in all four films from 1987 to 1998, and later by Clayne Crawford in the Fox television series from 2016 to 2018.Originally a member of the Los Angeles Police Department's Narcotics Division, upon being reassigned to the Homicide Division, Riggs is partnered up with strait-laced sergeant Roger Murtaugh. Riggs and Murtaugh remain partners and best friends throughout the film series.