We already know that series 4 of Torchwood is now a co-production between BBC, Starz and BBC Worldwide, but now comes firm news from Entertainment Weekly that three new characters are being added to the cast. They are: Rex Matheson, a "CIA agent born to make waves" with a "wicked" sense of humour; Oswald Jones, a convicted murderer and paedophile; and Esther Katusi, a young CIA agent "who learns what she's really made of only when she's forced to." The last two characters will be recurring, not regular. John Barrowman and Eve Myles will both return as Captain Jack Harkness and Gwen Cooper, respectively.
Update: Apparently, this casting call has just been denounced as "fake". The characters mentioned above are apparently part of the US version of Shameless that's being made. Other sources persist this news is real, but keep an ear out for more official BBC confirmation.