Jailkeeper is a fairly common role for a reason, and tacking on Miller won’t devastate it unduly. Nonetheless, I’m not a major fan of Millers, unless there’s a good reason for them to exist in a game, because otherwise they imply there’s a powerful enough investigative out there to warrant a red herring. If that never becomes a factor, it’s just a standard jailkeeper. Can’t really complain.
Secondly, something you should know about me is that I’m a fan of Mafia Neighbourisers. The rolecop thing is more of a bonus, I guess, although having the recipient of your ability have a choice between accepting the neighbourhood or become a 1-shot fruit vendor encourages you to vet your targets carefully.
…Hmm. I guess my only issue here is that the rolecop/neighbouriser/gifter of fruit parts of Ruby’s ability don’t seem to tie together especially well. Balance wise, it’s fine.
Purple Goo just entirely depends on the rest of the setup, it’s really one of those dependant roles.
Extrasensory (First Use) — Target player receives a kunai tomorrow and is told they must shoot (Day, Immediate) the second targeted player. If they try to shoot someone else, they die instead.