The versatile actor, who plays omnisexual hero Captain Jack Harkness in the cult BBC2 show, told The Sun: "I’d love it if Dannii appeared in Torchwood. She has an edge and I know she’s a fan of the show."
The comments follow the appearance of the X Factor judge's sister Kylie Minogue in the Doctor Who Christmas Special, which garnered impressive ratings. Best known for her music career, Dannii Minogue first rose to prominence in the UK through her role on Australian soap Home and Away.
The second season of Torchwood is likely to start on BBC2 in mid-January, with a trailer being screened after Doctor Who on Christmas Day.
> Click here to rate the Doctor Who Christmas Special