The first thing that comes to mind is Cho'gath because of his rupture ability. It's the only truly long range thing he has but it has a huge range and it pops them up and slows them.
Nasus has spirit fire which is pretty funny because it's just barely strong enough that the opposing team doesn't want to stand in it. It's just a big circle that does damage and lowers armor for a few seconds.
Singed isn't really ranged at all, but his poison trail, slow, and toss are all excellent at pissing people off.
I'm having a brain fart and can't think of other tanks that are annoying/have ranged moves. --- "It's like racism, except to only one person." -Todasmile Looking like a nerd is a small price to pay for ultimate power.
Actually I guess Shen could qualify since he has the taunt dash and his little sword throw move thingy. I personally did not enjoy playing him though... --- "It's like racism, except to only one person." -Todasmile Looking like a nerd is a small price to pay for ultimate power.
Corki, Katarina, and Annie all work as ranged champs that can be played as tanks, if you want to try any of them. --- (no sarcasm in this message, just to be completely clear, except sarcasm about the need to point out sarcasm in message board posts)
Build Nunu like a tank, but add in a little AP, and he's a great ranged harrasser.
Early on, during lane phase, a careful slow from his skill will net your partner a kill. --- If you think I'm crazy, you're probably correct. Though it wouldn't hurt to poke me with a stick, you know, just to check.