Starlow is a Star Sprite and one of the main three protagonists of Mario and Luigi: Bowser's Inside Story. She also appeared in Dark Bowser's Revenge, OiramOiram12345 and the Dark Star X, Into the Fourth Dimension and a brief cameo in The Moon World. She reappeared in Mario and Luigi: Dream Team, as an ally.
Dark Starlow is Starlow's doppleganger, but she only appeared as a very short cameo in OiramOiram12345 and the Dark Star X, where she was battling Starlow.
Fourlow is Starlow's 4D counterpart. Not much is known about her.
- It is currently unknown where Starlow is from.