Tanis (born 2358) was an Ocampa male, who was elected by his ancestors to live with the Caretaker's mate, Suspiria. Tanis lived until he was fourteen years old, exceptionally old for an Ocampa, whose average life span was only nine years. He believed his longevity was owed to Suspiria's nurturing. Tanis' father lived to be twenty. Tanis was played by Gary Graham. In the final draft script of "Cold Fire", Tanis was initially described thus; "He appears to be in his early thirties – dark, intense, attractive – but with a dangerous edge."