WHERE'S the Tardis when you need it.

Karen Gillan, who stars as Amy Pond in Doctor Who, was reportedly found naked in a New York hotel corridor after a night of riotous partying.

Gillan, 23, who plays the Time Lord’s assistant, was seen "whimpering" in the nude by guests at 7am before security arrived, wrapped her in a sheet and escorted her to her room, the Daily Mail reported.

Gillan and Doctor Who costars, including the Doctor actor Matt Smith, were staying at The Ace, one of Manhattan’s trendiest hotels, on a promotional trip.

After fulfilling their duties, the cast and crew enjoyed "one long party", according to fellow guests. One permanent male guest told the Daily Mail he heard someone trying to open his door at 7am.

The resident, who later identified the stranger as Miss Gillan, said: "I went to the peephole and looked out. I saw a man at the lift who was looking back at someone who was attempting to open my door … the next thing I saw was a woman giving this person at my door two towels before getting into the lift and leaving.

"Then I saw this young woman, completely naked, trying to wrap two towels around her and not having much luck.

"She then started to whimper and knock on my door. Seeing that she wasn’t getting anywhere, she lay down with the towels covering her."

Security arrived, noticed her room key and wrapped her up and took her back to her suite. The resident added: "I never saw Lady Godiva again."

Suzanne Leonara, another resident, said: "This girl looked as though she hadn’t been to bed. Everyone who saw her thought she was completely zonked out."

The trip, organised by BBC Worldwide, the corporation’s commercial arm, took place in April.

Last night a BBC Worldwide spokesman said: "We’re unaware of this alleged incident." Gillan’s spokesman declined to comment.