Kari Byron anytime Mythbusters is on.
PJ Harvey in 1994.
Tori Amos around the same time.
Little Joe from Bonanza - use to watch the reruns every day when I got home from school.
Mel Gibson back in his Mad Max days.
Billy Idol early '80s- I thought he was crazy sexy, but probably had a std, or two.
Harvey Keitel in the '90s - there is just something about him.
Ewan McGregor
Jude Law
My most lasting celebrity crush is Viveca Fox, and every sister I’ve ever met insists she’s only into thugs, like otherwise I’d have a shot. I can even remember when it started - in Soul Food, there’s a scene at a wedding where one sister’s husband is dancing inappropriately with an old girlfriend, and the sister wails “It’s my wedding day! I should be happy!” Vanessa Williams says “We are happy - aren’t we?” Viv gets this wicked little smile and says “Sure I"m happy - and I’ll be even happier when we go beat that ho down.”
Jane Fonda, 1965 (Cat Ballou) through 1986 (The Morning After). If anything, she was even sexier in The Morning After than she was in Cat Ballou or Barbarella.
Juliet Stevenson. Diana Rigg. Gorgeous, sexy women (at any age) and oh my god, their voices.
Edie Falco (at least as Carmella Soprano – not sure I’ve ever seen her in anything else).
Cathy Tyson. And, yes, I admit it, Jaye Davidson. They could be twin sisters, don’t you think? Except, well, Jaye wasn’t exactly Cathy’s sister.
Sibel Kekilli, who I first saw in Head On in 2004, and then lost track of (she apparently only recently learned to speak English, and never broke into English-language films) until I saw her on Game of Thrones as Shae. She’s had a nose job, which was a terrible, terrible mistake. I hate it when women who are uniquely beautiful in unusual ways have surgery to make themselves look more conventional. It’s never an improvement.
This woman I saw on the subway today. I think she was about 40 (grownups are way sexier) and gorgeous in an offbeat kind of way. Oh, well, I’ll never see her again, and anyway, I’m quite happily married.
And about a thousand more. I could do this all night.
And I always had a HUGE crush on Dick Van Dyke.
Paul Newman in every movie he ever made.
Bobby Darin. That man exuded sex appeal.
River Phoenix. (It was a fantasy so it was okay that I was so much older.)
Leonardo DiCaprio in Titanic. Same claim.
John Candy. I would have left my family for that guy.
Two more
Greg Louganis - 1984 and 88 Olympics. Pinged my gaydar even then, but he was so sweet, shy and cute I didn’t care.
Ira Glass - Started listening to This American Life podcasts a couple of years ago and I friggin’ absolutely adore everything about him.
http://www.buzzfeed.com/jessicamisener/21-reasons-ira-glass-is-the-most-perfect-man-alive
Pretty much all of them…
But, if I had to pick one. It would have to be Jennifer Love Hewitt early 90’s.
Man, 1994 was a big year for me. Maybe the biggest crush for me from around then was, and remains, Hope Sandoval from Mazzy Star. Yikes…
I also have a huge double crush on Stuart Murdoch and Isobel Campbell from mid-to-late 1990’s Belle & Sebastian. (Well, actually, Stuart is still pretty darned hot.)
Oh, and 1980s Morrissey. Holy cow. And 1960s Anna Karina, big time.
Shirley Maclaine, 1961. http://www.google.com/imgres?q=shirley+maclaine+childrens+hour&safe=active&sa=X&rlz=1T4ADFA_enUS408US409&tbm=isch&tbnid=KVcLj-LOkHlRbM:&imgrefurl=http://www.screenrush.co.uk/films/film-16259/photos/detail/%3Fcmediafile%3D19042164&docid=JlGMii2Gsyk1dM&imgurl=http://uk.web.img2.acsta.net/r_640_600/b_1_d6d6d6/medias/nmedia/18/62/91/02/19042164.jpg&w=600&h=400&ei=APfPUZn8OIOE9gSXsoGYDQ&zoom=1&iact=hc&vpx=340&vpy=284&dur=938&hovh=183&hovw=275&tx=135&ty=109&page=2&tbnh=141&tbnw=216&start=29&ndsp=38&ved=1t:429,r:47,s:0,i:229&biw=1280&bih=815 Since I saw her in the Children’s Hour, in 1968, I had had a crush on her until about 2005, when I saw that she had turned into my grandmother. Sigh.
Jan Smithers - entire run of original WKRP
Donna Douglas - color episodes of the Beverly Hillbillies. She was pretty enough for Elvis, guess I can make do.
Every woman recurring character in Firefly. Seriously, so beautiful, and so different. Also, Inara’s friend in Heart of Gold, played by Melinda Clarke. YoSaffBridge never did it for me though. Guess the crazy outweighs the hot. Gotta check Barney’s hot/crazy chart.
Lea Thompson circa Howard the Duck (1986).
Ally Sheedy circa Short Circuit (also 1986).
And an obscure one, Louisa Milwood-Haigh circa mid 90s, and now too.
Marilu Henner as Elaine Nardo on Taxi Link
You too, huh? I’m not sure I knew what gay was in 1988, but damn I thought he was cute!
Oh and by the way, I will fight you for Colin Firth. 
I’d take him anytime…
Kaley Cucou, if you can call total, raging lust, a crush .
Dr. Luka, on ER, and Noah Wylie, who is still cute as a speckled pup.
Dr. House. Though his bad behavior would drive me straight to Dr. Chase (Jesse Spencer), but only in the early years of ‘House’ before he got uglified. I could watch ‘House’ with the sound off, just to watch Dr. Chase operating on someone’s intestines, with his glorious long blonde hair barely contained by a surgical cap…
On a more contemporary note, I’ve recently been swooning a bit over the concentrated dose of male hotness that is multi-instrumentalist Andrew Bird (whose knee-weakening effect has been scientifically documented). So, needless to say, it got my pulse up when he hooked up with St. Vincent, another minor crush of mine, and they filmed themselves alone in a bedroom (link in spoilers for the sensitive):
My heart goes all aflutter when I see a WW2 vet. I just love 'em, they’re so adorable and such badasses.