The Gold Digger series has a large ensemble cast, in total spanning hundreds of characters.
Diggers family
Gina Diggers
Archaeologist, super-scientist, and adventurer, lover of all things Monty Python, Roddenberry and Lucas. After many years exploring the bizarre and inexplicable all over the Earth and off it, she now teaches archaeology at a local university in her home in Atlanta, Georgia, preparing the next generation of adventurers. Her current project is Earth's Age of Wonders.
Britanny "Gia" Diggers
Gina's "baby sister" and Earth's last full-blooded were-cheetah. Adopted as an infant by Gina's father, Brit has accompanied Gina on most of her adventures as an assistant and bodyguard, even if (most times) she would rather have been exploring high-end clothing stores at the mall. Brittany has also settled down (some) to be a doting wife, loving mother, and kick-ass martial arts instructor.
Brianna Diggers
Part Gina, part Brittany, and all trouble. Brianna blends Gina's technical brilliance and Brit's physical prowess with an unsettling helping of weapons mania. Her innate, semi-instinctive talent for magic can be a mixed blessing, but it sure comes in handy when she runs out of ammo. Brianna has started to learn aura magic under her father, and helps to design equipment for her friends in the Vaultron Force on the side. She marries Zan after learning she is pregnant with his child.
Theodore Diggers
Gina's arch-mage father. Theodore adopted Brittany after he failed to stop the slaughter of the were-cheetah clan. While his attempts to teach his daughter Gina his own magic arts resulted in failure, he helped her start into her discovery of science and technology where she excelled. Since then, he has watched both his daughters grow up, though not without occasionally terrifying their potential boyfriends.
Julia Diggers
Gina's mother, and a master martial artist, but Julia was under a spell which made her unable to visit Earth, or interact with her family during most of Gina's childhood. Gina and Brianna eventually removed the curse, and since then she has re-earned her title of Armsmaster of Jade, as well as becoming a master of the Shun-Leep style of martial arts, starting her own school on Earth.
Stryyp'Gia
Brittany's husband, and the crown prince of the alien Kryn species, who arrived on Earth and founded El Dorado long ago. Due to a misunderstanding, El Dorado and Atlantis had been locked in a cold war for centuries. After an Atlantean sorcerer enslaved the inhabitants, Stryyp (also called Stripe, as his name sounds like stripe, and his pelt is striped) freed his people with the help of Gina and Brittany. He and Brittany have a daughter, Tiffany, and Stryyp himself works for Agency Zero, an undercover organization manned by former superheroes who now perform their good deeds discreetly and anonymously for better efficiency, and to make themselves into less of an open target.
Tiffany 'Gia
Tiffany inherited her mother's were-cheetah powers and new symbiots replicated from her father's. She also spent her early life being educated by a living world-computer, and has developed into a genuine prodigy. Though mature for her age, she is still very much a little girl. Her symbiots help her process information and protect her from harm. Her recently manifested were-cheetah abilities are likely to make her more powerful than her mother some day.
Peebos
Cute, goofy, childlike, self-aware, technomage bombs, without common sense, invented by Brianna Diggers by unconsciously combining golem magic with advanced artificial intelligence.
Brianna eventually adopted the three most advanced models as children. Peebri, Peegi, Peebrit, are each modeled after Brianna, Gina, and Brittany, respectively, so by raising them, Brianna can picture what it would have been like if she grew up with her sisters. As such they have a relatively free rein and are encouraged to learn for themselves, but unfortunately Peebri's antics are often destructive and/or silly, although highly amusing. The Peebos have starred in their own spin-of miniseries, where the less advanced series models occasionally guest star.
Zan
A wild man and Ebenezer Sleake's assistant. He entered a relationship with Brianna and married her after discovering she was pregnant with his child.