robot trains RP

In the first season he was a dark blue, white and yellow train along with his units and his powers, but from season 2 onwards, it's noted that Kay is lighter blue with his white and yellow colors intact with some adjustments including his eyes and his units. He later received new equipment by Genie just like his friends.

It was reavealed that he cares alot about his female teamates example: Genie and Maxie

He was turned into a toddler in season 3 with his body being the same but different by a thunderstorm due to it hitting not just Wind Land but also the train car wash and his friends had to take care of him until there was a way to turn him back to his original size.

Maxie is a pink and white robot train and one of the main characters in the second season of Robot Trains. She's the youngest member of the Railwatch team. Maxie is a train who built with a very strong fan that is for extra speed and charge power. And thus she had saved Kay a couple of times with her fan of unknown energy although she's a train with no units but she can be stronger than Kay, Victor and Alf.

Duke is a large black train & with a very modest personality.

He is the strongest train in Train World (Fountain Plaza) other than Victor, Also he loves to spend his times in darker areas and trains to protect the citizens of Train World and later Rail World from season 2 onwards.

Alf is a red and white Robot Train
Alf is responsible and likes to help others. He often fixes things and he is a master of this business not just that he sometimes fight with His friends.

Victor is a dark blue, red and yellow Robot Train, with blue eyes. The fan-like nose he has resembles the appearance of a rotary snowplow.

He has a lamp on his head, similar to Duck's. He appears to have ski attachments on his boots/feet as well.Victor is a strong and protective engine, who appears to have good leadership skills.