Butch Patrick is an American former child actor. Beginning his professional acting career at the age of eight, Patrick is perhaps best known for his role as child werewolf Eddie Munster on the CBS comedy television series The Munsters from 1964 to 1966 and in the 1966 feature film Munster, Go Home, and as Mark on the ABC Saturday morning series, Lidsville from 1971 to 1973.
Patrick began his acting career in 1961, making his feature film debut in the 20th Century Fox comedy-fantasy The Two Little Bears. Over the next two years, Patrick went on to appear in guest-starring roles on numerous television series, including Ben Casey, Alcoa Premiere, Bonanza, My Favorite Martian and Rawhide as well as recurring roles on The Real McCoys and General Hospital.
In 1964, Patrick landed the role of child werewolf Eddie Munster, starring alongside Fred Gwynne as Herman Munster, Yvonne De Carlo as Lily Munster and Al Lewis as Grandpa, on the CBS television series, The Munsters, a fantasy situation comedy loosely based on Universal's movie monsters. The role of Eddie was originally portrayed by child actor Happy Derman in the pilot episode before Patrick was ultimately selected out of 500 boys for the role.
After The Munsters ended, Patrick continued to appear in guest-starring roles on various popular television series of the 1960s, including I Dream of Jeannie, Gunsmoke, The Monkees, Daniel Boone and Adam-12, as well as a recurring role as Gordon Dearing on the CBS family comedy series My Three Sons. In 1971, Patrick landed the starring role on the ABC Saturday morning children's program Lidsville. Patrick returned to occasional film and television work, including making cameo appearances as "Himself" on episodes of the Fox animated television series The Simpsons and the 2003 comedy film Dickie Roberts: Former Child Star.