Len Goodman, Bruno Tonioli and Craig Revel Horwood - who have been with the programme since its inception - will be joined once again by Darcey Bussell, who will be on board for her third series.
There had been speculation that Goodman, 70, may step down from the programme but he will continue.
Presenter Sir Bruce Forsyth announced earlier this year that he was retiring from the series, although he may still appear in one-off specials.
A spokesman for the show confirmed: "They're all coming back."
Judy Murray, the mother of reigning men's Wimbledon champion Andy Murray, is in talks to appear as a contestant on this year's series, which will be hosted by Tess Daly and Claudia Winkleman.