HOLLYWOOD, CA — The producers of NBC’s new show “American Gladiators” say they had no idea that Alex Castro, the warrior going under the alias “Militia” on the show, was once a gay porn star.

“We were aware that the guy had a good physique and did some modeling and stuff like that,” a show source told New York Post.

“We were certainly unaware to the extent that he apparently exposed his body. It is an internal matter now and something we will be in discussions with the network about.”

Photos and videos from Castro’s porn past have turned up on gay porn sites after Colt Studios went out and congratulated their former star about his new gigs.

The first season of “American Gladiators” has already been filmed and scenes with Castro will not be edited out.

On Jan. 6 (8 pm), “Militia” will join other beefy brawlers going by the names “Crush,” “Hellga,” “Venom,” “Stealth,” “Fury,” “Titan” and “Justice,” all trying to foil contestants vying for a $100,000 prize in various events including Pyramid, Gauntlet and Joust.