Shudder…
I’m 51. Markie Post is 63. That works for me.
Marlee Matlin - 48
Hey, my eyesight’s going :p. Plus, DC’s IMDb pic is more flattering.
An aside–you just KNOW Betty White (93?) knows things,… right? 
Another vote for Helen Mirren. Raquel Welch still looks…good, I guess, but it’s so obvious that she’s had extensive work done that it takes the shine off for me.
I’d have sworn she was older; not that she looks it but she’s been famous for almost three decades now.
And your taste is impeccable.
Leonard Nimoy and Dick Van Dyke.
David Selby 73
I’m suprised no one has mentioned Christi Brinkley. http://imabeautygeek.com/2014/01/30/christie-brinkley-is-60-and-in-a-bathing-suit/#axzz2skckpc4p Maybe it is because of makeup, hair extensions, plasic surgery and photo shop, but my first thought on seeing that photo was “Yeah, I’d still do her!”
Richard Gere was born in 1949. He appears to be healthy in body, mind and behavior. That’s attractive to me.
Oh, yeah, she’s been on a few episodes of Parks & Recreation the past couple of seasons and she still looks amazing.
Sir, I understand you’re a younger guy, but are you seriously not attracted to Sofia Vergara?
Olivia Newton-John still looks pretty good, for a 66-year-old gal. Adrienne Barbeau (69) gets an honorable mention just for looking passable without doing plastic surgery.
I already responded, but as long as we’re raising the zombie I gotta add one more: Peter Capaldi (56). He’s really growing on me in his turn as the Doctor, to the point where I had to go out and get “The Thick of It” on DVD so I can see more of him. 
Jennifer Beals is looking good at 50.
I think it would be good for her bone health to stay active. You’d be helping her out.
Neil Diamond. Just turned 73 and he’s hotter than ever!
As in “would do” and not just think “he’s a good looking guy”- probably Viggo Mortensen. He’s 8.5 years my senior.
I more than atone for this seemingly small age range by being more than willing to do Taylor Lautner and some other guys who are young enough to be my kids. 
Tom Selleck, a very hot 69. ::coughs::
Sam Waterston