 But it is clear that Jack's sacrifices, his deeply professed love of his entire team, and his ability to forgive them for their trespasses against him— even Owen who has actually shot and killed him— are Christ-like attributes.This idea was further reflected in "" where Jack was briefly returned to mortality while the rest of the human race were trapped in a state of immortality where they continued to age, get sick and sustain injuries without actually dying; in order to save the human race from this state of potential perpetual agony and the rule of the mysterious 'Three Families' who had triggered this immortality, Jack allowed Gwen to shoot him in the heart in the final episode, triggering the reversal of humanity's forced immortality without Jack knowing if his actions would also restore his immortality in the process.Discussing similar themes in "Doctor Who", Russel T Davies stated