Mark "The Animal" Mendoza (born Mark Glickman, July 13, 1956) is an American rock bassist and a member of the American heavy metal band Twisted Sister. He joined the band on October 31, 1978, after he left The Dictators. He briefly played in Blackfoot in the early 1990s. Mendoza is also currently a member of Joe Rock and The All Stars, contributing bass and vocals to this band that features front man Joe Rock of WBAB radio on Long island. He is also a co-founder of Area 22 Productions.
Mendoza played the bass guitar on all of Twisted Sister's major label releases. He remixed Under the Blade when it was re-issued by Atlantic Records, and produced and mixed Still Hungry and A Twisted Christmas.
Growing up in West Hempstead, New York, Mark 'Mendoza' Glickman attended George Washington Middle School and West Hempstead High School, both in West Hempstead, New York and graduated in 1974.