Richard E. Grant, Miranda Hart, Leigh-Anne Pinnock and Joe Lycett are among 21 contestants entering the Scottish Highlands castle for the autumn run.
The 10-part series will again be hosted by Claudia Winkleman, with players including Maya Jama, Michael Sheen and Bella Ramsey competing to win £100,000 for charity.
The first celebrity series ended with Alan Carr's victory and 15.4 million finale viewers, while the latest regular series in January drew more than 12 million per episode.
Could The Celebrity Traitors' massive success and economic impact reshape the future of reality TV and celebrity branding in the UK and beyond?
How do producers decide which celebrities become traitors or faithfuls, and what strategies might they use to win trust in the castle?
With Ardross Castle now famous worldwide, will Scottish tourism and local communities see lasting benefits from The Traitors phenomenon?