Going through all of my characters - Phoenix Wright (bewrightback) is a completely ordinary human being, so no magic there.

Rock Lee (niceguypose) has chakra in his body, so that might count as making him seeable?

As for Jade Curtiss, he uses fonic artes, which are his world's version of magic. Perhaps it's possible that the fonons gathering around him can be seen - Jade is exceptionally potent, and he has modified his own eyes to attract extra fonons.