when is traitors season 4

For The Traitors Season 4, there are actually two different versions people ask about: the U.S. Peacock version and the U.K. BBC version. Both are set for early 2026 and start in the second week of January.

U.S. Season 4 (Peacock)

• The Traitors Season 4 (U.S. version) premieres on Thursday, January 8, 2026 , on Peacock.

• The first three episodes drop the same night at 9/8c , with more episodes rolling out on Thursdays through late February 2026.

U.K. Series 4 (BBC)

• The Traitors U.K. Series 4 is confirmed to launch on New Year’s Day 2026 on BBC One and iPlayer.

• The BBC has trailed it as a New Year event show, keeping it in the now-traditional early-January slot for the U.K. version.

Quick Scoop style recap

• If you’re asking “when is Traitors Season 4” in a general, trending-TV sense, most fans mean the U.S. Peacock run on January 8, 2026 , which is already heavily promoted with trailers and schedule breakdowns.

• If your friends are into the U.K. castle chaos , then January 1, 2026 is the date circled for the BBC edition.

TL;DR:

• U.K. The Traitors Series 4: 1 January 2026 (BBC One / iPlayer).

• U.S. The Traitors Season 4: 8 January 2026 (Peacock, first 3 episodes at 9/8c).

Information gathered from public forums or data available on the internet and portrayed here.