*Sealia Seal is a character that appears in the Sonic the Hedgehog comic series and its spin-offs published by Archie Comics. She is a female mobian seal and a member of the Arctic Freedom Fighters.

Sealia is a mobian violet seal with blue eyes. Her design is somewhat unusual in that, rather than having legs and feet, she essentially walks about on flippers, having an almost mermaid-like body structure. In initial appearances, she was more gray in colour; this later shifted towards more purple hues. Her muzzle is generally peach, though it has at times been gray. Keeping in with her French theme, she wears a green beret (once coloured red) and a blue-and-white striped turtleneck shirt (once black and white). She was initially depicted with flipper-like hands with thumbs, though was later portrayed with normal fingers. Her more recent appearance has been made somewhat more feminine, pronouncing the curved-up "hair" spikes that were present in her initial design but largely forgotten later.

Sealia is a friendly, warm being who is deeply compassionate, having joined the Freedom Fighters despite a peaceful nature when she saw others made victims of Robotnik's tyranny. She has a simple, straightforward sense of bravery and decisiveness; when a situation requires her to act, she handles things in a pragmatic manner without hesitation. A particularly strong bond exists between her and Augustus, though it seems to approach a sibling relationship more than a romantic one.*