Dot and Bubble

309 – "Dot and Bubble"
Doctor Who episode
The text "Dot and Bubble" is centered horizontally and vertically in a rectangle. In the blurred background, there are similar squares with unidentifiable people in them.
Promotional title-card
Cast
Others
  • Callie Cooke – Lindy Pepper-Bean
  • Eilidh Loan – Cooper Mercy
  • Aldous Ciokajlo Squire – Harry Tendency
  • Niamh Lynch – Hoochy Pie
  • Millie Kent – Valerie Nook
  • Billy Brayshaw – Blake Very Blue
  • Pete MacHale – Gothic Paul
  • Max Boast – Dr Pee
  • Elloise Bennett – Rotterdam Twin 1
  • Olivia Bennett – Rotterdam Twin 2
  • Tom Rhys Harries – Ricky September
  • Jack Forsyth-Noble – Weatherman Will
  • Milo Callaghan – Alan K Sullivan
  • Susan Twist – Penny Pepper-Bean
  • Ellie-Grace Cashin – Suzie Pentecost
  • Jamie Barnard – Brewster Cavendish
Production
Directed byDylan Holmes Williams
Written byRussell T Davies
Script editorScott Handcock
Produced byVicki Delow
Executive producer(s)
Music byMurray Gold
SeriesSeries 14
Running time43 minutes
First broadcast1 June 2024 (2024-06-01)
Chronology
← Preceded by
"73 Yards"
Followed by →
"Rogue"
List of episodes (2005–present)

"Dot and Bubble" is the fifth episode of the fourteenth series of the British science fiction television series Doctor Who. The episode was first broadcast on BBC One in the United Kingdom on 1 June 2024 and released on Disney+ in the United States on 31 May. It was written by Russell T Davies, who originally pitched it for the sixth series, and directed by Dylan Holmes Williams.

In the episode, the Fifteenth Doctor (Ncuti Gatwa) and his companion, Ruby Sunday (Millie Gibson), attempt to save the city of Finetime from human-eating slugs, primarily by communicating with Lindy Pepper-Bean (Callie Cooke) through social media.

The episode features themes of the effects of social media on society, racism, and elitism and has been compared by Davies and critics to the anthology series Black Mirror. The episode received positive reviews from critics.