Metro

Sheet for brains: Punchy Alec under cover

(PacificCoast News.com)

Who’s that, the ghost of Jack Donaghy?

Here’s “30 Rock” star Alec Baldwin strolling along Park Avenue draped in a sheet that he swiped from a hotel following a dust-up with a photographer.

Onlookers gawked in amazement as the fiery actor left the Loews Regency Hotel appearing like a child with a homemade Halloween costume.

“He must have just taken it from the room,” a spokeswoman for the hotel said.

Baldwin even kept the sheet shielding his face as one of his assistants handed him a suit before he hopped into a waiting car.

Earlier in the day, Baldwin and his fiancée, Hilaria Thomas, got their marriage license.

The hot-tempered “Rock of Ages” star, 54, and yoga instructor Thomas, 28, turned few heads when they arrived at the City Clerk’s Office on Worth Street at about 9:30 a.m.

Baldwin’s mood turned dark when he got back outside and spotted two Daily News photographers.

“Stop that or I’ll knock your f–king teeth out!” Baldwin allegedly warned photographer Jefferson Siegel.

Siegel’s colleague Marcus Santos told Baldwin, “Don’t touch him,” and the actor then lunged at Santos, the source said.

Santos told cops Baldwin punched him on the chin.

Baldwin stormed off with a stunned-looking Thomas in tow — and Santos headed to the Fifth Precinct station house to file charges.

Police and the DA were still investigating last night whether to press charges, a source said.

Baldwin discussed the incident with Charlie Rose on his eponymous show and aired a portion of their conversation on “CBS This Morning.”

Baldwin offered his account of what happened, saying, “They almost hit me with the camera.”

Additional reporting by Amber Sutherland