Dannii Minogue to star in Doctor Who spin-off

Last night, Kylie Minogue appeared in hit Sci-Fi show 'Doctor Who' - and now, her sister, Dannii has been tipped to play a part in the spin-off series Torchwood.

According to reports, the 36-year-old Aussie songstress & X Factor judge is keen to give it a go and John Barrowman - who plays Captain Jack in the show, said: “I’d love it if Dannii appeared in Torchwood. She has an edge and I know she’s a fan of the show.”

Last night, millions of fans saw the '2 Hearts' singer appear in the Dr Who Christmas special - where she played plucky waitress Astrid, and shared a kiss with the Doctor (David Tennant) as they battled disaster on the Titanic.

But Kylie came to an unfortunate end after saving the Doctor’s life – just after he had asked her to become his new assistant.

According to British newspaper The Sun, Dannii - who mentored X Factor winner Leon Jackson, will return as a judge on the hit ITV talent next year. A show source said: “Dannii’s riding high after Leon won.” Danni’s in Melbourne with Kylie after they hired a private jet to fly home for Christmas.