#Spencer Grammer, actress daughter of Kelsey Grammer, is slashed while bravely confronting knifeman at Manhattan restaurant

Kelsey Grammer’s actress daughter Spencer was slashed at an East Village restaurant Friday night when she and a pal bravely confronted a knife-wielding drunk who then turned his blade on them, sources told The Post Saturday.

The mayhem erupted at around 11:30 p.m. at The Black Ant on Second Avenue when a man, who appeared intoxicated, tried to get a table but was rebuffed because the restaurant was about to close — sending him into an unhinged tailspin, bystanders said.

The man began fighting with employees and several customers, including Grammer, 36, and her dining partner, Jan Phillip Mueller — who rushed to help.

“Everyone jumped out of their seats. About 15 people maybe. Everyone was trying to pull them apart,” a witness named David told The Post. “It looked like there was a full on brawl.”

In the chaos, the man slashed Grammer in the right forearm, and Mueller, 31, across the back.

Both were taken to Bellevue Hospital, where they were treated for their injuries and released, police said.

By the time police arrived about a minute later, the spurned diner, described by David as buff, bald and wearing a white shirt — fled down Third Street.

“He was definitely too intoxicated,” a witness told ABC 7 of the raging knifeman. “And he took his actions from one thing to another, and he hurt people who had nothing to do with his actual issue.”

Dried blood remained on the sidewalk outside Saturday afternoon.

“I’ve been quarantining outside of the city and had just gotten back, and there is a stabbing outside of my apartment,” David said. “This is my welcome back to New York.”

Grammer — best known as the voiceover actor for the role “Summer Smith” on the Adult swim animated sci-fi series “Rick and Morty” — did not answer the door at her nearby East Village pad on Saturday.

She also portrayed Casey Cartwright on “Greek,” the ABC Family college dramedy.