Ken is a human boy who appears in the 2014 anime series Little Astro Boy. He was specifically created for this series, replacing the more traditional character Kenichi, who appeared in early promotional images for the show.

In terms of personality, Ken is characterized as an athletic and outgoing leader-type figure among his group of friends. He has a distinctive and playful way of speaking, often using rhymes and slang in his dialogue.

Ken's primary role in the story is as one of Astro Boy's best friends. He is a prominent member of Astro's social circle, and the two are frequently seen together. A notable tradition for the character is that at the beginning of each episode, Ken joins Astro in leading the opening dance sequence.

Regarding his relationships, the most significant is his friendship with Astro Boy. He is also presumably friends with the other children in their small hillside town, though specific details about his interactions with characters like Mitchy or Paul are not detailed in available information.

Information about Ken's background before the events of the series, his personal motivations, his character development throughout the eight-episode run, or any specific notable abilities he may possess is not available.