Melissa Altro (born May 16, 1982) is a Canadian voice actress from Montreal, Quebec. Prior to having a career to voice acting, Altro guest-starred on a 1994 episode of the YTV/Nickelodeon horror anthology series, Are You Afraid of the Dark?. She also starred as Heather in the 1995 film Kids of the Round Table and as Barb in The Woods (credited as "Missy Altro"). She has also voiced her Arthur character in the series Postcards from Buster, and specials Arthur's Perfect Christmas and Arthur's Halloween. She also has voiced other characters in the Arthur show, and has the distinction of being the only child actress to stay on the programme as an adult. Melissa also provides the voice for Gretchen in the Teletoon/Disney XD animated series Camp Lakebottom (2013).