This page picks up on the notion that Charisma is vulnerable to electricty – first demonstrated here!
Epoch: is, of course, the superpowered (and somewhat mollycoddling overprotective) father of Charisma Epoch. His abilities are essentially strength, flight and invulnerability – his most dramatic appearance to date was seen here although he has had a number of appearances throughout the archives.
Dr Chandra: the chief physician at Magellan Island Infirmary. She’s been seen a few times the first being here (where coincidentaly we see Epoch as well!).