She is a mobian dolphin and a lieutenant in the Meropis City Guard.

Echo is a mobian dolphin of average height. She has purple skin and a white muzzle with a rounded snout, along with some purple dots on her cheeks which resemble freckles. She has a dorsal fin on the top of her head, two on the back of her head, and one more on her back, as well as a caudal fin for a tail.

As attire, she wears the standard Meropis City Guard uniform, which includes a black shirt and shorts.