Sitcom star-turned-evangelist Kirk Cameron has teamed up with the US National Organization for Marriage (NOM) to record a video for the anti-gay group in which he argues only heterosexual marriages can properly “incubate” future generations.

The former Growing Pains lead, who now makes Christian-themed movies, has already been criticised by the US Gay and Lesbian Alliance Against Defamation (GLAAD) for the appearance.

“Kirk Cameron and the anti-gay activists at NOM are making a claim that Americans know to be false,” GLAAD president Herndon Graddick said.

“This rhetoric won’t work anymore. Communities across this country love and cherish their LGBT neighbours, friends and family members. This includes people in families headed by LGBT people.

“Their implication that LGBT couples can’t create loving and stable homes is not only outdated and irrelevant; it’s designed specifically to hurt those families.”

No stranger to controversy, Cameron was slammed by gay rights groups in March over anti-gay comments he made during a CNN interview.

He told CNN’s Piers Morgan that he believed homosexuality to be unnatural.

“I think that it’s unnatural. I think that it’s detrimental, and ultimately destructive to so many of the foundations of civilization,” he said.

Cameron also revealed he was vehemently against same-sex marriage during the interview.

“Marriage is almost as old as dirt, and it was defined in the garden between Adam and Eve,” he said.

“One man, one woman for life till death do you part. So I would never attempt to try to redefine marriage. And I don’t think anyone else should either. So do I support the idea of gay marriage? No, I don’t.”

The 41-year-old father of six was then asked how what he’d say to one of his children if they came out as gay to him.

“I wouldn’t say ‘That’s great son as long as you’re happy’, I’d say there are all sorts of issues we need to wrestle through in our life,” he responded.

“Just because you feel one way doesn’t mean we should act on everything we feel.”

Watch the NOM video below:

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