Alfonso Ribeiro -- aka Carlton on "The Fresh Prince of Bel-Air" -- laid down the law this week inside an L.A. barbershop ... jumping into action MID-HAIRCUT to break up an expletive-laced brawlfest.
Sources tell TMZ, the fight broke out between two employees at "In the Cuts" in Hollywood -- after a disagreement over which should be turned up louder ... the TV or the radio.
It gets physical pretty quickly -- but Alfonso doesn't miss a beat ... reaching into the frame with his badass gold-watched arm to pull the two guys apart, saying, "Let go, let go."
Eventually, the tempers cooled off -- but we're told Al was so shaken by the ordeal ... he didn't even finish his haircut. The barbershop had no comment. Calls to Alfonso have not been returned.
Carlton from 'Fresh Prince'
BREAKS UP Barbershop Brawl
8/5/2011 5:30 AM PDT BY TMZ STAFF
Get TMZ Breaking News alerts to your inbox