Following on from the announcements that The Rt Hon Vince Cable MP and Torchwood's John Barrowman would be taking part, three final names have been added to the bill.
Ex-This Morning host Fern Britton will be dancing with Matthew Cutler, EastEnders icon June Brown will partner Vincent Simone and comedian Ronni Ancona is teamed up with Anton Du Beke.
Barrowman will hit the dancefloor with Kristina Rihanoff, while Cable is partnered by Erin Boag.
All five celebrities will perform different dances for the Strictly judges and studio audience in the hope of winning a new Christmas Special trophy.
Speaking about her decision to sign up for the reality show, Britton said: "Strictly Come Dancing is my family's favourite programme. I am thrilled to be included in the Christmas line up.
"Of course I shall be nervous but I am trying to dilute that with the thought of the fun involved. I am not a trained dancer and only wish to do as well as I can for my professional partner and the Christmas viewers. Oh and I am really looking forward to the spray tan, false eyelashes and sequins!"
Ancona joked: "It's a wonderful opportunity to finally have confirmed that I don't actually have two left feet... Just two right ones."
Cable said: "I am delighted to be taking part in this year's Strictly Come Dancing Christmas special. Strictly has always been a secret, or not so secret, passion of mine. I hope that by taking part in the show I can inspire others to get up and do something they have always wanted to have a go at."
BBC head of entertainment and events Katie Taylor added: "Building on the success of the current series of Strictly - that has taken us literally to new heights - I am very excited that this year five fresh celebrities are prepared to don their dancing shoes, show us the cut of their cha cha chas and delight BBC One viewers for Christmas."