The former governor plays the role of a grouchy gym instructor in video prank

Jan 23, 2014 09:22 GMT  ·  By

Sporting a black handlebar mustache and long, dark hair, Arnold Schwarzenegger goes undercover at Gold's Gym, his old stomping ground, in an effort to promote the After-School All-Stars mentorship and activities program for families with low income.

The prank involved Schwarzenegger take on the role of “Howard,” a grouchy gym instructor with bad English (no acting needed there) who messes with and pesters people at the gym.

Though some people immediately saw through his disguise, many fell for it and remained unaware they were talking to the former Mr. Universe. Arnie walks the gym floor and taunts them or gives helpful advice.

Finally, the “Terminator” actor can be seen admiring some pictures of himself on the wall from back of his bodybuilding days saying “He looks so good. So handsome.”

For those of you that don't know, Gold's Gym was the places where Arnold trained back in the mid-70s when he first moved to the United States. Now, the gym displays pictures of him in his twenties when he was arguably in the best shape of his life.