The actor says Ashton Kutcher changed his life when he cast him on the hidden-camera show.

Novakis making his directorial debut withVengeance,but his first Hollywood job was significantly less glamorous.

Kutcher now appears inVengeance,and it marked something of a reunion for the two stars.

Usher’s Brother Gets Caught Red Handed | Punk’d

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“He changed my life with that show.

He wore a trucker hat everyone in America wore a trucker hat.

He was a trendsetter.”

Novak continued by detailing how his time onPunk’dworked.

Hilary Duff is taking her driving test, you’re the instructor.'

I’m like, ‘Yes, sir!’

I’m studying up."

The one downside to the gig?

The celebrities being pranked would often get very upset.

“It’s thrilling for me.

I’m meetingMissy Elliott; I’m meetingUsher.

It’s the worst day of their life.”

Novak said he remembers Usher being particularly mad during their encounter.

and gets a huge hug.

Your first impression of someone sticks.

I have not run into Usher since.

I don’t think he’ll be in my next movie."

But at least Kutcher is!Vengeanceis now playing.