Hi again:
I think Tom Selleck like Sean Connery is a classic handsome leading man for many always and forever whatever his age.
I think BL has been making the best of their guest stars including Mr. Selleck, but I also thought Michael J Fox was great, and loving the guest role by Parker Posey. They've also had some wonderful character actors who are semi-regulars who I can't name without looking them up on
www.imdb.com -- but I've seen them both in many strange and wonderful roles on many different series that I've seen before.
On BL they have played:
1) The guy who killed his mom and then killed the lady next door, and Alan defends him twice, and discourges his secretary played by Betty White from trying to "safe" him because he fears for her life.
2) The judge who lives with his mom, and was shamed by Denny.
They have made small but great reoccurring appearences.