I've done this exact thing before but people apparently didn't get the idea so I'll do it again. I'm doing a roleplay where we (up to three other people) wake up in an unknown area with no knowledge on how we got there or who the people around us are. So, do not explain ANYTHING about your character except for their physical appearance. Like I said, I did this already but the two folks who joined explained almost everything. I will repeat, DO NOT explain anything at all about your oc except for their physical appearance (height, hair color, skin texture, etc...). Got it? No name, no powers, no backstory, no personality, just what they look like.
Okay, here's the guy I will be using. Name: You don't know yet.
Appearance: A completely naked man with a shark's tail and a hammer-shaped head. He has fish fins sticking out from his triceps and calfs (I know that's not what the image shows, I drew it awhile ago), as well as a big one on his lower spine. His eyes are tall, yellow ovals without pupils and they are on the front of his faceb like any human. His teeth are pointed and come in a large number. He has no visible nose or nostrils, and three thin lines on either side of his chest, almost like a fish's gills. Aside from his notable shark features, his body shape is very human, and he looks quite built. The man seems like he'd weigh about 176 pounds and is approximately eight feet tall. He looks like he'd be a fighter of some kind, with the perfect build for a balance of speed and strength. He doesn't look like that just from genetics. No, he must exercise daily. He's always shaking and twitching, and he looks like he has some kind of anxiety disorder, as he itches his right arm frequently.