Arnold Schwarzenegger is back in the acting business, this time going undercover as a trainer at Gold’s Gym in California.

‘Devil Baby’ Terrifies New Yorkers in Prank Video

The “Terminator” actor and former governor dressed up as a trainer named Howard, and donned a fake mustache and ponytail.

“Maybe you’ve seen me on the FBI’s Most Wanted list,” Schwarzenegger tells one woman who thought she recognized him.

The hilarious prank is part of an effort to raise money for after-school programs. Check out the full video!

Viral Video: Invisible Customer Prank Leaves Drive-Thru Workers in Disbelief