Michael Caloz (born May 2, 1985) is a Canadian former voice actor who is best known for being the original voice of D.W. on Arthur from 1996 to 1999 holding his role for the first three seasons (he also narrated the funding credits for season 1 when it first aired on PBS).

Caloz was born in Montreal, Quebec. He voiced Dora Winifred Read (DW) from Arthur from 1996 to 1999, after season 3, he was replaced by Oliver Grainger. He also voiced Annie on The Little Lulu Show. He has performed in several movies, including Screamers, which was based on the Philip K. Dick story Second Variety. He has also performed on several live action television shows including an episode of Nickelodeon's Are You Afraid of the Dark? as a frozen child's ghost.

He has two brothers and plays piano, guitar and violin.