William Dwight Schultz is an American stage, television and film actor. He is best known for his roles as Captain "Howling Mad" Murdock on the 1980s action show The A-Team, Reginald Barclay in Star Trek: The Next Generation, Star Trek: Voyager and the film Star Trek: First Contact and Mung Daal in the children's cartoon Chowder.

In Family Guy, he was the voice of a clerk in "Holy Crap" and Randall Fargus in "Running Mates".