What is the name of Danny Glover's character in the American "Lethal Weapon" franchise?

Roger Murtaugh (born December 21, 1937) is a fictional character in the "Lethal Weapon" film series created by Shane Black. Murtaugh was originally played by actor Danny Glover (born July 22, 1946) in all four films from 1987 to 1998.

Murtaugh is a cynical homicide detective and family man. He was a lieutenant of the 173rd Airborne Brigade in the U.S. Army and served in the Vietnam War. He joined the Los Angeles Police Department in 1967 and celebrates his 50th birthday at the start of "Lethal Weapon". He has begun to consider retirement, hence his catchphrase, "I'm too old for this shit".

He is partnered with "loose cannon" and fellow Vietnam War veteran Martin Riggs (Mel Gibson born January 3, 1956) to investigate a suspected suicide of the daughter of one of Murtaugh's closest friends. Though the two initially hate each other, Murtaugh begins to sympathize with Riggs when Riggs saves his life. After Murtaugh discovers that his close friend from the Vietnam War, Michael Hunsaker, has been laundering the profits from a heroin-trafficking cartel, he confronts Hunsaker and learns the details of the organization before Mr. Joshua, the cartel's primary henchman, assassinates Hunsaker. The cartel kidnaps Murtaugh's older daughter, Rianne, in an attempt to make Murtaugh reveal what Hunsaker told him. Murtaugh and Riggs plan an ambush, which fails. By the end of the film, he has forgone retirement and accepted Riggs into his family.