The one living under my bed.

http://beehivehairdresser.com/wp-content/uploads/2007/06/sloth.jpg if he counts.

I allways liked harryhausen's monsters, Talos from Jason and the Argonauts allways stood out for me.

The Cookie Monster by far.

Charlize Theron

I don't know what my favorite is, probably something from the Cthulhu Mythos, but the most terrifying, for me at least, has to be Slenderman. Oh, god, Slenderman.

Well.. hard to say my favorite but Alucard sure is up in my top

http://www.youtube.com/watch?v=PT6JkGc7_sM :chaos:

I'd have to say either the Chupacabra or the Toilet Snake. Werewolves are okay- but only if they look like Solstheim's, not a furry human or an actual wolf.

http://angrywhitedude.com/wp-content/uploads2/2010/11/nancy-pelosi-on-botox.jpg

:teehee:
Yup.

Or http://www.youtube.com/watch?v=rrXj0ovACbk&feature=related :hugs:

There are a lot interesting monsters out their.

This what I picture a http://images.wikia.com/dragonage/images/2/20/Werewolfs.png to look like.

Imbunche/Imvunche

A creature that was once a child but turned into a beast with much hair with one of its legs folded onto its back, and protects a witches layer.

You win :cold:


edit:
Christ that's the creepiest visual I've been offered in a long time.. :goodjob:

Just reading about it creeped me out.

http://www.monstropedia.org/images/thumb/f/ff/Imbunche.jpg/180px-Imbunche.jpg

:mellow:

I've always thought http://www.google.com/imgres?imgurl=http://2.bp.blogspot.com/_gwhZoTJJhDs/TGf-1ss-f4I/AAAAAAAAAEE/-q8yDYWAZiM/s1600/Slender%2BMan.jpg&imgrefurl=http://notagrog.blogspot.com/2010/08/new-monster-slender-man.html&usg=__08ofR8550mInaljA764T7wG_KDE=&h=555&w=800&sz=126&hl=en&start=0&zoom=1&tbnid=HzCrEPzoSB0B1M:&tbnh=160&tbnw=214&ei=QqCvTZ-7IoPHgAeRqPTxDA&prev=/images%3Fq%3Dslender%2Bman%2Bwoods%26hl%3Den%26biw%3D1013%26bih%3D646%26gbv%3D2%26tbm%3Disch&itbs=1&iact=rc&dur=341&oei=QqCvTZ-7IoPHgAeRqPTxDA&page=1&ndsp=12&ved=1t:429,r:3,s:0&tx=114&ty=121 was pretty creepy.

I'm not really sure if he's a monster but http://www.youtube.com/watch?v=M3iOROuTuMA (in fact lots of David Firth's stuff) has always creeped me out.

I can't see it.

As for me:
http://whfb.lexicanum.com/mediawiki/images/5/50/Scabaiathrax_Gro%C3%9Fer_Verpester.jpg
http://www.warhammer-online.com.cn/media/artandillust/images/orc_gobin_warboss.jpg/http://img.booru.org/Grognard//images/8/0cb2b734d8dff20f27c2de62b520dcd15cd39fab.jpg
http://images.wikia.com/pathfinder/images/2/28/Azathoth.jpg for the ultimate eldritch abomination, and http://2.bp.blogspot.com/_eqPrIE5E1OM/TUiYDoW192I/AAAAAAAABRs/yGglwraZEUw/s1600/Shub-Niggurath.jpg as a close second. Saw Shub-Niggurath in my dreams once :mellow:
http://www.badassoftheweek.com/kraken.jpg
http://www.best-horror-movies.com/images/it-pennywise-basemant.jpg Refused to take a shower for weeks because of that one scene when I was young.
Old school with http://4.bp.blogspot.com/_bsqAK2lJ_oQ/TGDIH8ry6-I/AAAAAAAAACU/KndHfmCNllM/s400/scylla.jpg and http://worldsofimagination.com/Charybdis_1997.jpg from the Odyssey
http://www.knowledgerush.com/wiki_image/a/ab/Daleks.jpg.

There's probably some more, but I can't remember right now.

Bullzeye. That was a good show

Ha! Ever heard the Zappa song Cheepnis?

WAAAAGH! The Orkz(Orcs)

This.

http://www.toplessrobot.com/dawn-of-the-dead-zombie.jpg
http://www.fallout3.net/obrazki/nowiny/deathclaw_model.jpg have repeatably caused me heartattacks.
http://fc00.deviantart.net/fs46/f/2009/186/2/f/Left_4_Dead_Charger_by_jpizzle6298.jpg are fearsome as they always karma charge me.
http://www.gamereactor.se/media/urev/se/7914_22.jpg, greatest one yet really.

I also remember a horror film that had a form of thorn fungus which infected things further, if you touched it then it infected you and soon enough you became a walking thorn man.
Real creepy and cool design.

Those ghost people from Silent Hill 4 were also kinda creepy as they could not be killed and haunted you throughout the levels.
And just about every monster from Silent Hill 2.

http://www.wizards.com/dnd/images/mmiii_gallery/83011.jpg for sure.

Probably http://www.caffeineguru.com/wp-content/uploads/2008/07/monsterassault.jpg or http://zahrimz.webs.com/photos/MAH-RS-RZ/monster%20khaos.gif

Those taste and feel like rusty nails.

http://www.comixtribe.com/wp-content/uploads/2011/03/nosferatu1.jpg
Been scared of him since that spongebob episode and I always will be.
http://images.wikia.com/fanfiction/images/d/d0/Sly2pic45-1-.jpg
A big ass immortal bird is quite um scary.

You all know what dragons look like.