Kethil Wyvernsbane

Kethil stands 5'8". Her parents are a Desert Elf and a Vampyrri Human(like a dhampir). Her father is currently the avatar of the deity of fate. Her mother is the daughter of the avatar of the deity of Fire, who for some reason is a succubus that is good aligned. She became smitten with a cleric of that same deity and started working on getting him. She is very wealthy and so tends to wear only the finest materials. 

Through an adventure in an abandoned temple she took up being a cleric of a water god by the name of Nereus. His symbol is a wave forming a cutlass. She commissioned her Holy symbol to be made out of amethyst, sapphire and aquamarine to fit the theme and his colors. 

She has somewhat pale skin, black hair and amethyst eyes. Her succubus heritage seeps out in her beauty and ability to charm males if she wishes. She generally prefers to wear a dress and tends to wear Nereus' colors now. His colors are ocean blues and purples. She wears her hair down, but in a style that keeps it out of her face in battle. She wields a cutlass and has a whip for when she does not want to get in close. 

Israfel

 is a human synthesist with the appearance of a classical roman angel. He Stands 6' tall with shoulder length red hair and green eyes. Build wise, he is, again, classical roman / greek with strong features and well defined proportions.
When fused, he appears to be wearing silver and gold Lorica Squamata i.e. Roman scale armor. No helmet is worn. He will also manifest white dove wings.

In armament he differs from the typical roman image, carrying a mithral Daisho. 

Sigfried de Aragon

Dark clothing with a symbol of a 5 headed dragon, Tiamat on the chest. He wields a massive two handed flail, and is much more draconic/reptilian looking, with an elongated snout, prominent teeth, and much coarser, dark brown (near black) scales.

Amontillado

'Monty' Amontillado is a half-elf rogue big on muscle and big on charm.
The sort of roguish bad-boy that all the mother warned their daughters about, Monty looks like a romance novel cover model come to life.

Had he been born on Earth instead of Golarion, his dark and swarthy looks would give clear indication of his mothers Italian ancestry, offset with some of the finer features of his fathers Elven blood.

His hair is raven black in colour, from the slicked back and tied into a long plait.

His looks are dark and smouldering, handsome, but definitely bad-boy in nature...

TLDR - Ultimately he's a pretty physical guy, a Rogue Thug with big Str and a very respectable Cha stat (and the Charming trait). He's half elven, dark hair, dark features, has an elven curve blade, and is generally a well dressed Sczarni - well dressed medieval mafiosa. His chain shirt is masterwork.

I guess for 'dark and smouldery looks' you might consider the Jake Gylenhaal Prince of Persia, or just look for any bodice ripper romance novel with 'pirate' or 'rogue' on the cover - its all swarthy looks and 5 o'clock shadows on chisel jaws and flashy biceps under manly (yet elegant) eyebrows with smouldery eyes.

Jorrah Mermont

the Grey Headhunter. He is a human fighter, and he wears full plate armor and uses a great sword. Being in his 40's his once dirty blonde hair is greying now and his face is showing his battle scars now. His armor shows once fine crafted knightly design, but has since aged hard like its wearer. With his massive sword he is lucky if he doesn't remove the upper body along with his targets head.

Ulric

(Human Barbarian/Oracle): Ulric stands at an even 6 foot, blond wavy hair flows down to his shoulders, it is keep off his eyes by a simple leather headband. Bright blue eyes look out from a pale and ruggedly handsome face. His long blond beard and moustache are both braided. Ulric body has a thin frame but it is covered with solid muscle and he is able to push all his physical limits when entering a berserker rage. His long legs can carry him with swift and sure strides.
Ulric wears an ornate set of breastplate armor over worn but serviceable travelling clothes made of seal-leather dyed blue and white. The motif on the armor shows a long-ship cresting a wave. Sturdy Whale-fur boots are tied with seal-leather cords.
Ulric carries a long hafted great-axe. The grey steel blade, forged by a master-smith of his homeland, has a similar motif to the armor. A fully stocked backpack and numerous belt pouches allow Ulric to organise his equipment, which can at times be of critical importance.
Despite his formidable appearance Ulric has an easygoing nature and is quick to smile. He is willing to buy everyone drinks and tell them tales of his homeland or his recent adventures. However there is something slightly odd about him, to most people it is just a minor feeling of unease caused by strange noises, odd shifts of breeze or a drop in temperature. To those with The Sight, mostly harmless but sometimes malevolent otherworldly spirits surround Ulric. These are only able to affect the physical world in some minor ways as noted earlier or rearranging Ulric's gear in his backpack. Ulric is, however, learning to tap into this phenomenon as a source of knowledge and power.

Haldyr

not too picky about the ears per se, just deffinatly elven. standing pretty well straight up with his sword held backhand and behind him with the blade coming up past his shoulder. I like the look of a chinese style sword, the ones that sometimes have tassles or bobbles hanging off of them and a nice straight blade with the last couple inches tapering to a tip. The left hand held up with a spell charge just waiting to blast somebody.

hair should be long and dark flowing out behind his shoulders, with a long coat buttoned up over the chest

Ulgulanoth

Basically a skeleton with black robes and an intelligent item talking witch hat..