 Barrowman continued to guest star in Doctor Who in 2007 , appearing in " Utopia " , " The Sound of Drums " , and " Last of the Time Lords " . He also participated in a Doctor Who special on the BBC 's The Weakest Link . In 2008 , Barrowman appeared in the two @-@ part 2008 series finale , " The Stolen Earth " / " Journey 's End " and reprised the role of Captain Jack Harkness in the " Doctor Who : Tonight 's the Night " special . In 2010 , Barrowman returned to Doctor Who with a cameo in The End of Time along with other previous stars . Series 3 of Torchwood was broadcast in July 2009 as a miniseries of five episodes called Children of Earth . Filming of Series 4 called Torchwood : Miracle Day began on 11 January 2011 primarily in Los Angeles , and in and around Cardiff , Wales . The first episode of Miracle Day aired on Starz Network in the USA on 8 July 2011 and was broadcast on BBC One in the UK on 14 July 2011 . Both Doctor Who and Torchwood became popular in the United States on the BBC America network . In November 2013 he appeared in the one @-@ off 50th anniversary comedy homage The Five ( ish ) Doctors Reboot . 
