Diamond Route: The Animated Series

Elle Witlock is the protagonist of the story, she's a young teenager, around 14-15 years of age, calm and composed, despite her age, she's quite mature

Helen Cecil is a good friend of Elle, she's the adopted granddaughter of Mrs. Matilda, the crazy antique shop owner of town. She's very grateful of having Elle as a friend because she and her family don't neglect Mrs. Matilda unlike other folks. She's rough, strong, athletic and quite the runner.

Princess Lew Onyx is the third, youngest daughter of King Onyx II, the then ruler of Auralis. She's a young teenager, around 14-15, same as Elle and Helen, and she befriends the two later on in the story. She travels from Auralis to Earth to cure boredom. She has a long wooden staff which opens the portal to Earth.. 

Olivia Witlock Lewis is the mother of Elle. She's around 40-45, although she looks quite young and youthful. She is a soft-spoken and poised woman who'd take a bullet for her family.

Merelda Onyx is the middle child of King Onyx, older than Lew. She's around 22-23, and she's a very kind and poised person. She was given the throne instead of the eldest daughter i.e. the direct heiress, because she was seen as more worthy of the crown than her older sister.

Arbra Onyx is the eldest daughter of King Onyx II and the eldest sibling of Lew and Merelda. She's seen as selfish by the King and the other sisters as she wants to stop helping the humans by supplying minerals and gems from Auralis (their kingdom). The King once said that Arbra should be ashamed to show her face with a mindset like that, so she wears a mask on a regular basis. She's seen as selfish and ill-minded, so she was denied the throne, despite being the direct heiress, and the throne was given to Merelda.

Diamond is the head of the jewel council, which holds a high position in the palace of Auralis, they're the only diamond Auralian (her diamond minions don't count), which is the reason, diamond is kinda rare on Earth. She was great friends with Merelda and was hurt the most upon hearing the news of her death, so she along with the jewel council, fled far away from the palace, in a shelter, where she isolates herself from other jewels. 

Ruby is the member of the jewel council, she, along with Gold, is the "visual" of the council, looking her best and showering the council in glamour. She's quite fashionable and loves showing off.

Iron is the member of the jewel council. She's the muscle of the council, tough and strong 💪. She's not embarrassed of the scars in her life, she embraces it.