The A-Team actor, real name Laurence Tureaud, also claimed that he was snubbed by the footballer when he tried to advise him on starting a career in Hollywood.
Speaking about Beckham's style, he told NME: "[Beckham] don't know what he wanna do. One time he even had a mohawk. I said, 'What's up with that, man?'
"If you gonna wear the mohawk, you stick with it. You don't just be dibby-dabbing. You make up your mind."
He continued: "He was trying to find himself. Him, I have to pity. He's not a tough guy - he went the pretty boy route and when he gets kicked on the shin he goes 'boo hoo'."
The '80s star added: "[Beckham] came to LA, figured he'd do more commercials, do a movie on the side.
"He needs some help, but he wouldn't take my advice, because he's made a lot of money. He's married to Posh, so he don't want to listen to Mr T."