Spectra

Spectra is a starman who utilizes colorful beams of light and laser blades in combat. Since crashing on Earth, Spectra stays with Terry Gibson, a human who took him under his wing at personal risk, living disguised as a human named Cory Prisma.

He's a free-spirited man that wears his hearts on his sleeve and enjoys anything bright, expressive, and any and all things sweet. Even on bad days, Spectra wholeheartedly loves his new life among humans, for all its ups and downs, as well as the planet they call home, Earth. When an intergalactic threat or oppressive empirical power threatens the world he loves, Spectra is the first at the front lines to defend his new home and all the friends he's made or will make.

[He actually has a full ref already, but it's a bit old. I'll update that and put it up here later.]