Marion is a tall Tiefling with vibrant violet skin and sweeping black horns that curl backward like a ram's. His eyes are solid gold orbs that glow faintly in the dark. He wears weather-beaten naval leathers over a sea-captain's coat, and he is perpetually covered in a fine layer of salt. He carries a rapier that appears to be made of solidified black sea water.

Marion is eccentric and prone to staring at things that aren't there. He speaks in nautical metaphors and possesses a grim sense of humor. Despite his unsettling presence, he has the disciplined mindset of a navigator, always calculating the shortest distance between two points.

Marion Violet spent most of his youth as a deckhand on merchant ships, finding the isolation of the sea more welcoming than the stares of townspeople. During a routine voyage through the fog-shrouded Maw, his ship vanished. Marion was pulled into a crushing, sunless depth where he encountered an entity of vast, ancient power. To avoid drowning in the silence, he offered his service to the things that live in the dark. He awoke on a deserted beach weeks later, his soul bonded to a leviathan of the stars. He now searches for the location of the submerged rift he found, unsure if he wants to close it or dive back in. His shadow often appears to be underwater, waving its arms even when Marion is standing perfectly still.