"My people have a saying: a man who trusts can never be betrayed, only mistaken."
Cally (Jan Chappell) is one of the show’s few aliens (although probably in part also descended from yet another Earth colony). She’s a telepath in exile from her home planet, Auron.
An alien telepath is hardly unique in SF TV, but Wiki would claim that Cally is, in one respect - where other telepaths’ abilities bring them closer to their human crewmates, in B7, Cally’s telepathy only serves to isolate her further. (Oh, show, show…)