Attack of the Graske

"Attack of the Graske"
Doctor Who interactive episode
The Graske claims another victim.
Cast
Doctor David Tennant (Tenth Doctor)
Companion The viewer
Others Lisa Palfrey — Mum Nicholas Beveney — Dad Mollie Kabia — Girl James Harris — Boy Robin Meredith — Granddad Gwenyth Petty — Grandma Roger Nott — Older man Catherine Olding — Young woman Jimmy Vee — Graske Ben Oliver — Urchin
Production
Directed by	Ashley Way
Written by	Gareth Roberts
Script editor	Simon Winstone
Produced by	Jo Pearce Sophie Fante Andrew Whitehouse
Executive producer(s)	Russell T Davies Julie Gardner
Length	14 minutes
Originally broadcast	25 December 2005
Chronology
← Preceded by Followed by → "The Christmas Invasion" "New Earth"
List of Doctor Who serials

"Attack of the Graske" is an interactive mini-episode of the British science fiction television series Doctor Who that was first broadcast on the BBC Red Button service on 25 December 2005. It was available as an online game on the official Doctor Who website.

The Tenth Doctor welcomes the viewer into the TARDIS. He tells them that he has been watching the viewer for some time, as they have been watching him, and that he has been impressed enough to want to take the viewer to help him on his next adventure. His current companion, Rose, has been dropped off at Wembley in 1979 for an ABBA concert. He then imbues the viewer's television remote control with the power of his sonic screwdriver, allowing the viewer to take part in the proceedings.

To start, the Doctor shows his new assistant a family of six celebrating Christmas in a living room, by means of the TARDIS scanner - a family, it seems, like any other, except that one of them is an alien imposter. By alternating between two different viewpoints, namely from within the family's television set and from the handheld digicam the daughter got for Christmas, the viewer has to determine who does not belong.

The mother's eyes glow for about half a second a few seconds into the sequence, revealing her as the imposter. She is now alone with the father in the house's kitchen. A small alien transmats onto the kitchen table, where he uses a handheld device to zap the father. The Doctor tells the viewer that the alien is a Graske, a species that invades planets by replacing its population. When he is done, the Graske transmats away, leaving a changeling of the father behind to join that of the mother.