He was great in “Catspaw” in Star Trek.
https://upload.wikimedia.org/wikipedia/commons/thumb/1/11/Jackie_Coogan_as_Uncle_Fester_%28The_Addams_Family%2C_1966%29.jpg/250px-Jackie_Coogan_as_Uncle_Fester_%28The_Addams_Family%2C_1966%29.jpg