Glyph is an adorable amphibious alien from my own fantasy/sci-fi universe.
She lives with an odd crew of folk on a stolen military cruiser called the Dauntless.
She appears to be dumb to most as she lacks the vocal ability to communicate in anything beyond cute noises, and she is also easily led astray by things that interest her, but she is quite intelligent and understands the meaning and intent behind people's words, even if that makes her a bit gullible when some try to take advantage of her. She shows a huge interest in plants and has a natural affinity for growing them, around her they almost sprout up in days, so it's suspected she has a magical ability that hasn't yet been seen by the crew.
The Captain constantly hides his personal stash of sweets, yet she always finds it, it's starting to bug him a lot.