New 'Doctor Who' villains revealed

Doctor Who is to face his most challenging villains yet, according to a show insider.

The Time Lord will be forced to battle the Tritovore, described as a half-man half-fly creature, in the forthcoming Easter special, reports The Mirror.

"They are disgusting and will last long in the memory," said a source, who added that Who bosses hope that the Tritovore would become as iconic as the Daleks and the Cybermen.

"Everyone remembers the Daleks and the Cyberman, but not a lot else if they're honest. The Tritovore will change that.

"Scriptwriters are confident they'll make a huge impact."

The insider added that Who showrunner Russell T. Davies was hoping to use the Tritovore in future episodes, saying: "Russell is telling everybody to expect some real surprises. He wants [David Tennant] to go out with a bang."

Last week, it was confirmed that former EastEnders actress Michelle Ryan and comedian Lee Evans would guest star in the Doctor Who Easter special, titled Planet Of The Dead.