Mr. Slate
Hanna-Barbera's Flintstones
- Also known as Mr. Granite,Mr. Rockhead
Fred Flintstone's boss. Uncle of Barney Rubble through his sister Flo Slate Rubble.
Appearances
- Dino #1 — 1973-08-10
- Dino #2 — 1973-10-10
- The Great Gazoo #9 — 1975-04-10
- Dino #9 — 1975-04-10
- Pebbles and Bamm-Bamm #31 — 1976-02-00
- The Flintstones #7 — 1993-12-00