 Martha, as voiced by Freema Agyeman, also appears in the 2007 animated serial "The Infinite Quest", which aired in twelve weekly segments during the run of the 2007 series.Martha reappears in the second series (2008) of the "Doctor Who" spin-off, "Torchwood", which focuses on Captain Jack Harkness.First appearing in the episode "Reset" as part of a three-episode story arc, Martha has been temporarily drafted to the Torchwood organisation of alien-hunters by Jack, requiring a medical expert on alien life.