Robin

First he was a necromancer in human form, then he was trapped in the Book of Monsters and now he is a cloud. Monstrox is the most evil… uhm… vapor? But even in the form of a cloud, Monstrox is still very powerful. His lightning can turn good people evil and animate stone statues to obey his every twisted command. He has given up on taking over Knighton, now he is out for full-on destruction, of course mixed with his usual humorous insults. You think you have seen bad weather? Then check out this dark cloud!

As Clay grew up, he dreamed every day of becoming a NEXO KNIGHTS hero. Now he is the leader of the NEXO KNIGHTS team, the knightliest knight in the kingdom and the most dedicated defender of the realm. He has just been instrumental in destroying the Book of Monstrox, rescued his friend Jestro from evil and been hailed by the King and Queen. So now he can rest… Ha ha, very funny. Clay never rests. He knows that evil never sleeps. And if evil really does sleep, Clay is sure it is never more than a power nap. So now Clay is a teacher at the Knights Academy, training the next generation of NEXO KNIGHTS heroes. Clay expects a lot from his students and he is a hard teacher. Some of his knights in training say it is almost like he is made of stone. That is because fighting evil is no joke. Not with Clay as your teacher anyway. His pre-fight punchlines are just horrible.

Robin Underwood is a freshman student at the Knights Academy. He is an amazing builder of gadgets, gizmos and gimmicks for the knights to use in their battle against evil. A fight he really, really, really wants to get in on. Robin may be young, but he is very impatient about becoming a full-fledged knight.

Macy has two different sides to her. She is both a princess and a protector of the realm. She is a strong, sharp and independent woman. She can really handle herself on the battlefield, but her father King Halbert can hardly handle that she so joyfully leaps into battle. He wants her to be a princess, doing official business in nice dresses, but Macy prefers clothes made of iron, not clothes that needs to be ironed. Deep down Macy feels change coming. How long can she continue being both a protector and a princess?

The Royal Soldiers are obedient bots that follow orders and have a great sense of duty. They take pride in their jobs as soldiers, but they do prefer standing in long ranks at official ceremonies a lot more than being sent into battle against the monsters. They have basic sword skills, but unfortunately their best combat tactics is still holding their sword in front of them, while turning their face the other way and hoping for the best.