Michael John Berryman (born September 4, 1948) is an American character actor. Berryman was born with hypohidrotic ectodermal dysplasia, a rare condition characterized by the absence of sweat glands, hair, and fingernails; his unusual physical appearance has allowed Berryman to make a career out of portraying characters in horror movies and B movies. He came to prominence with his roles in One Flew Over the Cuckoo's Nest in 1975 and The Hills Have Eyes in 1977. He has appeared in several movies and television shows, including Star Trek and The X-Files. Personal life Berryman is a strong advocate for environmental protection and lived on a wolf sanctuary for ten years. He is of partial German descent. Berryman's father was a U.S. Navy surgeon and was deployed to the Hiroshima fallout zone in the wake of the atomic bombing. Career Berryman played Pluto in Wes Craven's 1977 horror film The Hills Have Eyes and the 1985 sequel The Hills Have Eyes Part II. He has also made appearances in the science fiction and fantasy movies My Science Project (1985), Weird Science (1985), Armed Response (1986), Evil Spirits (1990), The Guyver (1991), and Brutal (2007). He appeared in the 1975 Academy Award-winning drama One Flew Over the Cuckoo's Nest. His time on set for The Hills Have Eyes proved difficult for him, since, during the 4-month shoot, temperatures in the desert routinely surpassed 100 degrees Fahrenheit and, without sweat glands, he had to take special precautions to avoid suffering heatstroke. He had a role in The Crow (1994) as "The Skull Cowboy", Eric Draven's guide to the land of the living. Berryman's scenes were cut from the original theatrical release, but can be found on some DVD releases under "Deleted Scenes". He has appeared in Star Trek and some episodes of The X-Files. He appeared in the 1985 Mötley Crüe video for "Smokin' In the Boys Room", as well as the introduction to the band's song "Home Sweet Home". He also portrayed the devil in two episodes of Highway to Heaven: "The Devil and Jonathan Smith" (1985) and "I Was a Middle-Aged Werewolf" (1987). Berryman is a popular draw at genre conventions, such as the 2002 Horrorfind convention in Baltimore, Maryland, and the 2007 Eerie Horror Film Festival in Erie, Pennsylvania. He also appeared in 2001 and 2002 at the Horrorfind convention in Baltimore, Maryland and in Milwaukee, Wisconsin on June 7