Maxi

Maxi is a robot train and one of the main characters.
Maxi is a white and pink train with brown eyes.
Maxie is the youngest member of the Watch team. She is positive and naive, and loves to play. Maxie often views the X-Family not as enemies, but as friends she can have fun with. Before the episode "Maxie and the Bugs," she was afraid of bugs, but she overcame her fear and saved the insects from death. Maxie loves learning new things, listening to Gary's stories, and singing. She gets offended when people tell her she's too young for something or that she lacks experience. Maxie's idol is Kay—she wants to be as fast as him. However, Kay often teases her. Ginny is very kind to Maxie.
Maxi, like Kay, is distinguished by high speed.
Maxi can recharge train engines.
In "Shadow Energy," she receives her first additional parts—jet boosters, which give her the ability to fly.
She has an illeism in her manner of communication, which means she uses third-person positions by using her name instead of "I", for example, "Maxi is happy" and so on. She is about 6 years old, so illeism is normal for her. It has the shape of a train and the shape of a robot.
She is the height and size of a high-speed train, and in robot form she is taller.