The only two guys I can think of are Nino Gaggi and Greg dePalma.

Nino Gaggi was his main guy. He replaced Big Paul as capo when Castellano got the top job.

Then, Greg dePalma became the capo of this crew after Gaggi.

When you think abou it, it was such an ecclectic crew. You had Big Paul and his poultry business, Nino Gaggi and his guy Roy De Meo robbing and killing everything on sight, and Greg dePalma with his show business connections.