The serial sex offender accused of raping a woman in a Flatiron District bar professed his innocence on Saturday during an exclusive jailhouse interview — in which he bizarrely likened himself to Hollywood icon Cary Grant.

Rodney Stover, 48, painted himself as a chivalrous gent, not a twice-convicted rapist released from prison two months ago.

“If I would have been there, I would have killed the guy,” Stover told The Post from Rikers Island, where he’s in protective custody for allegedly raping a college student in a bathroom at the Turnmill on East 27th Street on April 11.

“Well, I would have pulled him off,” he quickly added.

Stover, in prison-issued tan sandals and a lime-green jump suit with a torn crotch, claimed he was at the Bellevue Men’s Shelter on East 30th Street when the crime took place — and said he didn’t need to attack women for sex.

“I’m not a bad-looking guy. I can get girls,” he said. Then he pulled off his broken bifocal glasses and cocked his head with a raised eyebrow. “That was my Cary Grant.”

Stover said that before arresting him, cops showed him surveillance footage and told him he matched a description of the attacker.

“I’m a nice, peaceful and gentle guy,” he said, whining that he has been crying in his cell.

Stover spent more than two decades behind bars for rapes in Southampton, LI, and Pennsylvania.

He told The Post that he was molested by his mom at age 8, and that he sexually abused his sister.

Before his latest bust, he had been working at the Empire State Building at the NY Skyride theater.

“There were a lot of pretty women to look at. There were women and kids, families,” he said. “Of course, I look. Wouldn’t you?”