The "traitors" you are referring to appear to be related to the TV show "Celebrity Traitors," which airs twice a week on BBC One. The episodes of Celebrity Traitors UK are scheduled for Wednesdays and Thursdays at 9 PM UK time. The show premiered on Wednesday, October 8, 2025, and continues with episodes on October 15, 16, 22, 23, 29, and 30, with the final episode airing on Thursday, November 6, 2025. This schedule covers the days on which the traitors appear as part of the show's narrative of intrigue and betrayal among the contestants.

In addition, there is a lighthearted "National Traitors Day" on July 5, which is a day to humorously acknowledge moments of betrayal, such as sharing spoilers, rather than actual treason.

Thus, if your question is about the "traitors" in the context of the show, they are featured on Wednesdays and Thursdays on BBC One. If you mean the concept more generally, the playful National Traitors Day is on July 5 yearly. This should answer your query about what days the traitors are on. If you seek specific traitors or other contexts, please clarify.