Captain John Hart, played by James Marsters, is a fictional character from the BBC science fiction television programme Torchwood. He is introduced in the episode "Kiss Kiss, Bang Bang"—the first episode of Torchwood's second series. Whilst the character has not featured subsequently to the second series finale, he went on to appear in a Torchwood Magazine comic strip and Marsters has stated his interest in reprising the role on more than one occasion.