Mr. Slate

Mr. Slate is a character from the Hanna-Barbera animated sitcom . He is Fred Flintstone's hot-tempered boss at the Slate Rock and Gravel stone quarry.

Appearances in Christmas specials

 * A Flintstone Christmas
 * A Flintstone Family Christmas
 * A Flintstones' Christmas Carol - Mr. Slate portrays the role of Jacob Marbley in the Bedrock Community Theater production of A Christmas Carol.