Guest Stars

Sophie Okonedo As Liz 10 Recurring	Ian McNeice As Churchill (Winston Churchill) Recurring
Terrence Hardiman As Hawthorne	Hannah Sharp As Mandy (Mandy Tanner)
Alfie Field As Timmy	Christopher Good (1) As Morgan
David Ajala As Peter	Catrin Richards As Poem Girl
Jonathan Battersby As Winder	Chris Porter voiced Smilers / Winder

Main Cast

Matt Smith (3) As The Eleventh Doctor	Karen Gillan As Amy Pond

Recap

In the distant future, the giant Starship UK is equipped with a vast city. In a classroom, the children are called before the teacher, a two-faced mannequin known as a Smiler sitting in a booth. One face smiles and one frowns. They all receive good marks, except for Timmy. Afterward, Timmy talks to his fellow student, Mandy Tanner, who tells him he'll have to walk all the way to London, 20 decks away. She warns him that he'll be sent below. As she enters the elevator, a robed figure bars him from entering. Timmy takes the next elevator and another Smiler is waiting for him. A girl on a viewscreen starts reciting poetry and talks of going below, and the elevator descends all the way to floor zero. The floor opens beneath Timmy as he screams...

Read the full recap

• Executive Producer	Steven Moffat  |  Beth Willis  |  Piers Wenger
• Producer	Peter Bennett (3)
• Production Designer	Michael Edward Thomas (3)
• Editor	John Richards
• Casting	Andy Pryor
• Line Producer	Patrick Schweitzer
• First Assistant Director	Steve Robinson
• Second Assistant Director	James Dahaviland
• Music	Murray Gold
• Costume Designer	Ray Holman
• Make-up	Morag Smith
• Grip	John Robinson (3)
• Camera Operator	Martin Stephens
• Set Designer	Ben Austin
• Set Decorator	Arwel Wyn Jones
• Location Manager	Paul Davies (3)  |  Gareth Skelding
• Property Master	Paul Aitken (2)
• Production Coordinator	Jess Van Niekerk
• Assistant Editor	Cat Gregory
• Post Production Supervisor	Samantha Hall  |  Chris Blatchford
• Supervising Sound Editor	Paul McFadden
• Gaffer	Mark Hutchings
• On-Line Editor	Matthew Clarke (2)  |  Mark Bright (2)
• Director of Photography	Graham Frake
• Stunt Coordinator	Crispin Layfield
• Post Production Coordinator	Marie Brown (2)
• Production Management	Steff Morris  |  Claire Thomas
• Sound Mixer	Jeff Welch
• Script Editor	Brian Minchin
• Dubbing Mixer	Tim Ricketts
• Sound Recordist	Bryn Thomas
• Third Assistant Director	Heddi Joy Taylor
• Costume Supervisor	Lindsay Bonaccorsi
• Boom Operator	Dafydd Parry
• Art Department Coordinator	Amy Pope
• Main Title Theme	Ron Grainer
• Production Accountant	Ceri Tothill  |  Carole Wakefield
• Camera Assistant	Jon Vidgen  |  Tom Hartley
• Best Boy	Peter Chester
• Casting Associate	Andy Brierley  |  Alice Purser
• Production Executive	Julie Scott (2)
• Unit Manager	Geraint Williams  |  Rhys Griffiths
• Foley Editor	Helen Dickson (2)
• Colorist	Mick Vincent
• Continuity	Non Eleri Hughes
• Focus Puller	Steve Rees  |  Shirley Schumacher
• Runner	Nicola Lynon Price  |  Laura Jenkins
• Prop Buyer	Catherine Samuel
• Graphic Artist	Jackson Pope
• Makeup Artist	Abi Brotherton
• Concept Artist	Peter McKinstry  |  Shaun Williams
• Production Buyer	Ben Morris (4)
• Supervising Art Director	Stephen Nicholas
• Standby Art Director	Dafydd Shurmer
• Construction Manager	Matthew Hywel-Davies
• Standby Props	Tom Evans (2)  |  Phill Shellard
• Production Runner	Sian Warrilow
• Associate Designer	James North
• Sound Special Effects Editor	Paul Jefferies
• Make-up Designer	Barbara Southcott
• VFX Editor	Ceres Doyle
• Make-up Supervisor	Pam Mullins
• Costume Assistant	Sara Morgan  |  Maria Franchi
• Additional Editing	Mat Newman