Wolf Ackva (1911 - 2000) was a German voice actor known for his patriarchal, authoritative voice, put to use dubbing Sam the Eagle on Die Muppet Show and in related productions, through the German dub of Muppets Tonight.
Ackva began his career as a writer and subsequently studied medicine before entering the acting profession. He became active in German film and television from 1937 onward, and played Sherlock Holmes in a 1955 TV version of The Hound of the Baskervilles.
As a voice actor, Ackva was heard in the James Bond franchise, dubbing actors Bernard Lee and Robert Brown as "M" in a total of seven films, and Geoffrey Keen in For Your Eyes Only. He also dubbed Gregory Peck in three films, Henry Fonda in Mister Roberts, Vincent Price in Theater of Blood, James Mason in Duffy, and Ed Asner in The Doomsday Flight. His animation credits include Theoden in Ralph Bakshi's 1978 animated version of The Lord of the Rings.