Ken Robbins (ケン・ロビンス) is a character from the Kaleido Star anime and one of the first main characters introduced in the first episode. Though Ken has a behind-the-scenes type job, Ken is always first to lend Sora a helping hand when she really needs it. Ken has a crush on Sora that seemed to have blossomed since she joined Kaleido Stage. Ken too had dreams of performing on stage, but he couldn't because of his weak heart. He acts as Sora's coach and personal trainer during practice. His Japanese voice is provided by Hiro Shimono and John Swasey voices Ken in the English version. Ken only has one song call ed "Lightning Girl" on the Kaleido Star Vocal Album.