| "The Sea Devils (Part 4)" | |
|---|---|
| Series Doctor Who Season 9, Episode 12 | |
| File:Doctor Who 9.12 001.jpg | |
| Air date | March 19th, 1972 |
| Writers | Robert Holmes |
| Director | Derek Martinus |
| Producers | Derrick Sherwin |
| Starring | Jon Pertwee; Caroline John; Nicholas Courtney |
| Episode guide | |
| Previous "The Sea Devils (Part 3)" |
Next "The Sea Devils (Part 5)" |
"The Sea Devils (Part 4)" is the twelfth episode of series ninth of the British science fiction television series Doctor Who and the 257th episode of the series overall. It is the fourth chapter of the "Spearhead from Space" serial and was directed by Derek Martinus and written by Robert Holmes. It first aired on BBC One on March 19th, 1972.