Len Carlson (September 2, 1937 – January 26, 2006) was a Canadian voice actor who has voiced various characters on many animated television series from the 1960s to the 2000s, an occasional live-action TV actor, and a Kraft Canada TV pitchman during the 1970s and 1980s.

He was the voice of Big Boss, Sundown and Mace on C.O.P.S., Senator Robert Kelly (and the Supreme Intelligence) on X-Men (1992), Bert Raccoon and Pigs Two and Three in The Raccoons (and a voice director for the show from 1990 onwards), Putter from Popples, Mr. Frumble, Mr. Gronkle, and Mayor Fox in The Busy World of Richard Scarry, Professor Coldheart in Care Bears (1985), and Rocket Robin Hood in some of the third-season episodes.

[2] Carlson also contributed to creative projects, dramatically opening Canadian musician Lawrence Gowan's 1985 music video A Criminal Mind.

[3] In his last years, Carlson was a regular on Nelvana-produced shows such as Rolie Polie Olie, Cyberchase, Pecola, Donkey Kong Country, Medabots, Beetlejuice, and Beyblade as the main antagonist Gideon (season two).

Most recently, he appeared in the Canadian co-production Atomic Betty, voiced the characters Hugo and Q in the video game Street Fighter III 3rd Strike and narrated the animated bible TV series Friends and Heroes.