Doctor Who is returning to our timeline on August 27th for the remaining half of season 6 and BBC America wants everyone to know about it. To that end, they’ve planned three separate Doctor Who specials for August, with a bevvy of celebrity fans helping out.

The first special, Doctor Who: Best of the Doctor, will focus on the Time Lord himself and will air two Saturdays before the premiere on August 13th 9PM. Doctor Who: Best of the Monsters airs one week later in the same timeslot, and lastly, Doctor Who: Best of the Companions will directly follow the 9PM premiere on August 27th.

To help commemorate the Doctor’s return, BBC America has collected some high-profile Doctor Who fans on this side of the pond. According to the press release, the specials will feature Alison Haislip of The Voice, celebrity blogger Chris Hardwick, 30 Rock‘s straight man Scott Adsit, Natalie Morales of Parks and Recreation, musician and voice actor Eugene Mirman, WIRED editor Adam Rogers, singer Amanda Palmer of the Dresden Dolls, comedian/musician Reggie Watts, Danielle Harris of various Halloween movies, comedian Paul F. Tompkins, former NFL player Hugh Douglas, and Athrax guitarist Scott Ian.

Mark Sheppard, a fan favorite from Supernatural, Battlestar Galactica, Warehouse 13 and a TARDIS-full of other sci-fi shows, will be the only Doctor Who cast member in attendance. Sheppard played an aid to President Nixon in the two-part Doctor Who season premiere.

You can catch a sneak peak of Doctor Who: Best of the Monsters below, featuring the creepy villains from the season opener, the Silence.

Doctor Who begins the second half of the season on August 27th, with the ambitiously-titled episode “Let’s Kill Hitler“. You can check out a sneak peek of this and other upcoming episodes in the Comic-Con preview video.

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Alison Haislip (The Voice, G4 correspondent), Chris Hardwick (Nerdist), Scott Adsit (30 Rock), Natalie Morales (Parks and Recreation), Eugene Mirman (Flight of the Conchords, Bob’s Burgers), WIRED Magazine senior editor Adam Rogers, singer-songwriter Amanda Palmer (Dresden Dolls), comedian/musician Reggie Watts, Danielle Harris (the Halloween franchise), comedian Paul F. Tompkins, former NFL player Hugh Douglas, and guitar hero Scott Ian (Anthrax). And Who fan fave Mark Sheppard