Filming for the third season of BBC AMERICA's highest rated series ever, Torchwood, has begun in Cardiff, Wales. From creator Russell T Davis (writer of Doctor Who, Queer as Folk), the hit sci-fi series is scheduled to return in 2009 with the third installment titled "Torchwood: Children of Earth".

The new season sees the Torchwood team embarking on a single action-packed adventure as they battle for the future of the human race against the fiercest force they have encountered.

The highly-motivated team is John Barrowman as Captain Jack Harkness, Eve Myles as Gwen Cooper and Gareth David-Lloyd as Ianto Jones. Other regular cast involved in their high-octane adventure are Kai Owen as Rhys Williams, Gwen's husband, and Tom Price as PC Andy.

Special guests in the five part series are Peter Capaldi (Doctor Who, The Thick Of It, Skins), who plays the role of Mr. Frobisher a civil servant who is hiding a terrible secret, Paul Copely (Coronation Street, The Bill) as Clem the survivor still haunted by his past, and Liz May Brice (Bad Girls, The Bill) as Johnson the cynical covert government agent determined to expose Torchwood.

Russell T Davies said, "The new series of Torchwood is hugely bold and promises to be bigger and better than ever the audience is in for an amazing ride. This series is one big serial and the most ambitious story we've ever made, and we've got plenty of surprises in store."

Julie Gardner, Head of Drama, BBC Wales, said, "We hope to make Torchwood a gripping and surprising TV event with storylines that push our team into greater danger and sacrifice. Joining our main cast are some fantastic guest artists who will only add to making this unmissable TV."