UK TV · 5
The Imposter: all seasons, episodes and where it airs in the UK
Quick answer · UK
The Imposter is a UK thriller series on 5, which ran from 2025, with 1 season and 4 episodes.
The Imposter has ended; its final episode aired on Thursday, December 18, 2025.
The Imposter seasons (1 season, 4 episodes)
| Season | Episodes | First aired | Last aired |
|---|---|---|---|
| Season 1 | 4 | December 15, 2025 | December 18, 2025 |
Original UK air dates on 5.
Common questions
How many seasons of The Imposter are there?
The Imposter has 1 season and 4 episodes, first airing on Monday, December 15, 2025.
Has The Imposter ended?
The Imposter has ended; its final episode aired on Thursday, December 18, 2025.
What channel is The Imposter on in the UK?
The Imposter aired on 5. Past episodes are often available on the broadcaster's own catch-up app.
Who stars in The Imposter?
The main cast includes Kym Marsh, Jackie Woodburne, Jane Harber, Don Hany.
Source: TVmaze (CC BY-SA), retrieved October 7, 2026.