The citizens’ group will aid Maricopa County Sheriff Joe Arpaio’s deputies in efforts to crack down on illegal immigration.

Ferrigno, best known for his starring role in “The Incredible Hulk” television series, lives in California. He says the Arizona posse volunteers can help protect the country against drug and immigrant smugglers.

“I must warn you that we are in for a rude awakening, because this country right now is in a lot of danger,” Ferrigno said at the ceremony Wednesday.

The sheriff said action-film star Steven Seagal and actor Peter Lupus of TV’s “Mission: Impossible” fame also are members of the posse group, though they weren’t sworn in at the ceremony.