Was dan blocker ever on the 3 stooges?

No, Dan Blocker was never a member of The Three Stooges. He is best known for his role as Hoss Cartwright on the television series "Bonanza." The Three Stooges, comprising Moe Howard, Larry Fine, and Curly Howard (later Shemp Howard), were a separate comedy act and did not include Blocker in their lineup.