Edward "Ed" Asner (born November 15, 1929) is an American film, television, and stage actor, voice actor, and a former president of the Screen Actors Guild. He is primarily known for his role as Lou Grant during the 1970s and early 1980s, on both The Mary Tyler Moore Show and its spin-off series Lou Grant, making him one of the few television actors to portray the same leading character in both a comedy and a drama. He is also known for portraying Santa Claus in the 2003 comedy Elf and its 2014 remake .