Actor Rex Lee. (Associated Press file photo)

Entourage creator Doug Ellin has vowed to put an end to homophobic and racial slurs made behind the scenes of the hit TV show after actor Rex Lee complained about bullying on set.

The gay Asian star, who plays Lloyd on the series, admitted he was "occasionally" targeted by crewmembers for his lifestyle.

Lee told TMZ.com he had been subjected to "insensitive gay jokes", but added, "I try not to let it bother me."

Ellin is "shocked and horrified" to learn of Lee's claims, and has promised to take charge of the matter when filming on the seventh season begins next year.

He says, "(I) will be speaking to everybody before we start filming again in March. It's not something condoned or acceptable."