Obviously talking about Hydron what was the logic of having a scuba diver walking around in broad daylight wearing his full gear (oxigen mask, duck feet and all) ?

I know i'm referring to a series where walking skeletons with eyes make sense, but what i want to know is if there was some purpose to this character, like something he was meant to do or be that really demanded him to be a scuba diver in space?

PRobably mister Olesker is the right person to address this?