This shark bared his teeth, but he still didn’t get into “Hamilton.”

California tech billionaire and frequent “Shark Tank” guest Chris Sacca showed up at the Richard Rodgers Theatre last Thursday with two tickets he bought on StubHub.

But when a scanner determined the tickets were counterfeit, and he and wife Crystal English were turned away, Sacca began flapping his jaws.

“Do you know who I am?” Sacca thundered repeatedly, according to an eyewitness, a Broadway theater worker who requested anonymity.

“He was getting really angry at the ticket scanner,” the tipster said, and speaking in “a really condescending way. “He said he was a ‘shark’ on ‘Shark Tank’ and warned it wouldn’t be good if they couldn’t get in.”

Unable to calm Sacca, the ticket taker went to get the manager.

The manager “explained the exact same thing, that there’s nothing they could do, this happens to a lot of people and they always tell people to be careful buying tickets second-hand,” the tipster said.

The Post has reported on a rising number of ticket scammers plaguing the red-hot Broadway musical, and on a recent police sting — orchestrated by an online victim — that netted an alleged seller of bogus tickets.

But Sacca “wouldn’t take no for an answer,” the witness said. “He kept making a scene, saying how they had flown from California and it was his birthday.”

After nearly 20 minutes of bickering, the couple left “in a huff.”

Ironically, just before he arrived at the theater, Sacca sent a tweet to the show’s writer, director and star, Lin-Manuel Miranda.

“Cool if I drop by your place tonight? Any plan around 7:00?” it read.

Sacca deleted the tweet shortly after his humiliating exit.

Twenty minutes later, the billionaire petulantly tweeted that he was already at another show, comedian Mike Birbiglia’s one-man off-Broadway play, “Thank God For Jokes.”

“While the rest of you were waiting in line for Hamilton, we broke ribs laughing w/ @birbigs,” he tweeted.

Sacca and English have since redirected their ire at StubHub.

“@StubHub @TeamStubHub There isn’t any way to make it up. You keep ruining people’s experiences. It happens. Every. Single. Night,” Sacca tweeted Wednesday.

A StubHub spokesman blamed “seller error,” adding they’ve reached out “to apologize and get him back to a show.”