Linh Cinder: Cinder is a cyborg mechanic who is the missing princess Selene Channarty who is the only daughter of the late queen Channary and is also the niece of Queen Levana but is without her past memories little to no that the fate of the world rests in her hands.
Prince Kai: After Kaito's father, emperor Rikan has passed away from the plague letumosis Kai was crowned the new emperor of Eastern Commonwealth, he later meets Cinder when taking his broken android to her shop for it to be repaired and begins to grow feelings for her over time. After Queen Levana found out that the princess Selene Channary was still alive she threatened to have war towards Earth which later resulted Prince Kai being forced to marry her to prevent the war against Earth.
Dr. Erland: Dr. Erland works at the palace researching a cure for letumosis. After Dr. Earland helped Cinder escape jail using his glamour he became a crown traitor by Eastern Commonwealth for being a Lunar person.
Iko: An android partner and best friend of Cinder, she often forgets that she is an android due to her malfunctioning personality chip. After Cinder gets arrested Iko is destroyed and Cinder saves Iko's chip to put into a new body.
Queen Levana: Queen Levana has a special power that allows her to glamour others into following her orders manipulating them to fall in love with her, she is also the blame for the plague, Letumosis that is spreading around Earth affecting people worldwide in order to weaken them.
Main Character quotes.
“I'm sure I'll feel much more grateful when I find a guy who thinks complex wiring in a girl is a turn-on.”
"I have a glitch too. Sometimes I forgot that I'm not human. I don't think that happens to most androids."
"Go? Miss Lihn you must realize how valuable you've become with this discovery,"
“I don’t see that her being cyborg is relevant.”
"I hope you noticed that I am capable of choosing my battles if that's what it takes to win the war."