The problem with Sugita would be akin to what I'd call the "Robin Williams" syndrome ... it would depend on whether he can be "not on stage" all the time. I understand Mr. Williams can take a lot of energy to be around
As far as Sugita, I have no idea what his offstage persona might be ... but I suspect Aya wants to play around quite a bit longer before anything like settling in with one guy. VAs have a nasty tendency to retire after they get married.