Original sentence: Gareth has appeared in all three series of Torchwood, his character meeting his death in its third series and he also made an appearnce as Ianto in the Doctor Who series 4 finale episodes "The Stolen Earth" and "Journey's End" playing Torchwood character Ianto
Edited sentence: Gareth has appeared in all three series of Torchwood, with his character meeting his death in its third series.His character Ianto also made an appearance in the Doctor Who series 4 finale episodes "The Stolen Earth" and "Journey's End"