Greg Wise is the 10th contestant confirmed for this year's 'Strictly Come Dancing'.
The 'Sense and Sensibility' actor - who is married to Hollywood star Emma Thompson - is taking part in the BBC Latin and ballroom show for his late sister Clare, who died nearly five years ago.
He said: "My beautiful sister was a huge disco queen.
"She left our world almost exactly five years ago in a glitter ball coffin. This is for her.
"My gorgeous diva sis, who would have been insane with excitement that her little bro was doing this.
"I will channel her, as her bro can’t dance - but I’m thrilled to be dipping my toes, knees, hips and arms into this wonderful world, and hope to make her proud, and obviously make her laugh."
'The Crown' star Greg admitted his wife, 'Love Actually' actress Emma, is "stupidly excited" about him taking part in the show.
Speaking on 'This Morning', he said: "It's going to be so important having her there. She's done three films back-to-back this year, so she's exhausted now anyway."
The 55-year-old star admitted he is "more nervous" about having the spotlight on him - due to him being a part of the dance show - than he is about taking to the dance floor and strutting his stuff.
When it was suggested there would be a lot of attention on him during his 'Strictly' stint, he said: "Yeah, which is one of the things I'm slightly more nervous about than the actual dance steps.
"But it's about being out there and exposing yourself as someone who can't dance, and learning."
Greg was unveiled on 'This Morning' as the latest 'Strictly' contestant, shortly after Tilly Ramsay was also revealed on the brunch-time show.
It comes after Katie McGlynn, Dan Walker, Sara Davies, Tom Fletcher, Robert Webb, AJ Odudu, Rhys Stephenson, and former 'Great British Bake Off' winner John Whaite - who will be one half of the show's first-ever all-male partnership - were all recently confirmed for this year's 'Strictly'.
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