Doctor Who's "Day of the Doctor" has been touted as a three-Doctor episode but the BBC may be squeezing in just one more Time Lord.

While Whovians were gleefully surprised by Paul McGann's appearance as the Eighth Doctor in the 50th Anniversary special prequel, "The Night of the Doctor," some may be even more excited to hear that a certain doctor with a penchant for scarves will be making an appearance in the milestone episode.

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That's right, Tom Baker will be getting in on the multi-Doctor madness, according to the Huffington Post.

"I am in the special," said Baker. "I'm not supposed to tell you that, but I tell you that very willingly and specifically; the BBC told me not to tell anybody but I'm telling you straightaway."

Baker, who played the Fourth iteration of the Doctor from 1974-1981, will pop up in some form or another but that doesn't necessarily mean it will be a new clip. Fans saw the return of the First Doctor (William Hartnell) during "The Name of the Doctor" despite the actor's death in 1975.

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"As with William Hartnell's recent appearance in the last season finale, anything is possible in Doctor Who," a BBC representative told the Huffington Post. "But nothing is certain."

"The Day of the Doctor" will air worldwide on Nov. 23. Click the video below to see a preview of the 75-minute event.