Actor in the The Hills Have Eyes (1977), One Flew Over The Cuckoo's Nest, Weird Science.

Horror genre icon whose best known for his creepy performance as "Pluto" in the uncompromising Wes Craven horror film "The Hills Have Eyes (1977)". Berryman (who suffers from Hypohidrotic Ectodermal Dysplasia, a rare condition leaving him with no sweat glands, hair, fingernails or teeth) reminds one of a latter-day Rondo Hatton who also suffered from a rare medical condition that distorted his features giving him a brutish look just right for horror movies.

To Berryman's credit, he managed to develop upon his "Pluto" character, and has turned up in numerous sci-fi / fantasy movies /horror and dramas such as "One Flew Over the Cuckoo's Nest (1975)", "My Science Project (1985)", "Weird Science (1985)", "Armed Response (1986)" and "Evil Spirits (1990)". The tall & lean Berryman generally portrays mutant bikers, evil undertakers, monsters and other frightening characters, but he has also played life-saving angels! A genuine favorite of horror movie fans.