David Yost (born January 7, 1969 in Council Bluffs, Iowa) is an American actor. He is best known for playing Billy Cranston in Mighty Morphin Power Rangers (1993–1996) and Power Rangers Zeo (1996). He currently lives in Montecito, California.
Yost reprised his role as Billy in Mighty Morphin Power Rangers: The Movie, which is set in a different continuity from the main series. In addition, he played Cranston’s ancestor, William in the 2-part episode “Wild West Rangers”.