I don't think there's enough botox to pull Marina Sirtis out of mothballs to make a relevant episode.Kirsten Dunst was Lwaxana Troi's dead daughter (tying the last two posts together.) They should bring her back as the Mirror Universe Troi's Dead Daughter Who Didn't Die In This Universe.
He was on the Hawaii 5-0 for awhile there more recently but I'd rather bash my nuts with a wooden mallet than sit through another episode of thatI remember he used to guest star in every tv show in the 90s and 2000s.