LOS ANGELES -- Olympic champion Ryan Lochte put his toe in the acting pool for a cameo appearance on the CW drama series "90210."

The swimmer says it was his first acting gig and he was "really nervous" because he "didn't want to mess it up."

He says "everyone was really nice. They helped me out," adding: "Hopefully, I killed it through the end."

Lochte played a guest at a resort visited by characters Naomi and Max, played by AnnaLynne McCord and Josh Zuckerman.

In the scene, Naomi makes a fuss over seeing the handsome Olympian.

Lochte won five medals, including two gold medals, in swimming events at the London Olympics.

The "90210" episode with Lochte will air at 9 p.m. ET on Oct. 29.

The show's producers say there's no water involved in the scene, adding that Lochte "deserves a little rest on dry land."

He attended the premiere of "The Expendables 2" in Los Angeles on Wednesday night.

Information from The Associated Press was used in this report.