
If you're willing to have Dr. Orpheus use magic on your character, please comment below. You can also choose to opt out all together. If you're willing to have him use magic on your characters, but not the high-tier powers, or only certain powers please let me know.
[Also!: Many, many superheroes and cartoon characters have parody versions who are real people in his world. His world also has a lot of the same media, for instance Batman comics and Scooby-Doo cartoons. He's not going to know any details since he's not an avid comics reader or anything, but if you'd like him to recognize your character feel free to say something.]
Tier I powers:
Mindreading: He can read recent, surface memories if he touches someone and concentrates.
Illusions: These can range from mild ones, like making someone believe a rock is a snake to disturbing things to changing someone's belief about their identity.
Resurrection: In general this requires a fresh body and plenty of material spell components. It's against his ethical code to perform this on a body that can't be healed.
Soul Shenanigans: He can trap people's souls in objects.
Sleep: He can make people fall asleep and suggest that they forget things.
Tier 2: Somewhat less worrying powers
Astral Travel: His spirit can move around independently of his body. Sometimes he can pull people along.
Levitation: Making objects smaller than a person float.
Perceiving talking to, and exorcising spirits
Perceiving and repairing the boundaries between worlds. Whatever that means.
Energy bolts: Shooting taser-like bolts of energy.
Transforming objects: He can sort of do this, but not well at all.
[Note: Dr. Orpheus is immune to mind-wiping (by force or technological means), but he is super-vulnerable to hypnotic suggestion. Try it, it's fun.]