(born February 10, 1930) is an American actor of stage, screen, and television, best known for starring in the television shows It Takes a Thief (1968–1970), Switch (1975–1978), and Hart to Hart (1979–1984).
He also had a recurring role as Teddy Leopold on the TV sitcom Two and a Half Men and has a recurring role as Anthony DiNozzo Sr.
on the police procedural NCIS.
In movies, Wagner is known for his role as Number 2 in the Austin Powers trilogy of films (1997, 1999, 2002), as well as for A Kiss Before Dying, The Pink Panther, Harper, The Towering Inferno and many more.
In 2018, Wagner was named a person of interest in an ongoing investigation into the mysterious drowning death of his wife, Natalie Wood, in 1981.