I know it's probably mentioned elsewhere in one of my notes, but on my very first play through I had the weird reincarnation bug where Quentin showed up in the Occultist party after I went Academic -> Occultist (Died to Minotaur) -> Agents (Purposefully died because I hit a dead end and couldn't get out or back into the hotel) -> Occultist. Quentin showed up in my party at the very start of that final occultist run since we never got out of the hotel. He had zero speaking lines, and I got all the way to the asylum, but was a fully functional character.