Artist breakdown:

Fifties era clothing links:

• http://home.att.net/~movie.stars.1950/1950s_mens_clothing.html
• http://www.fashion-era.com/Vintage_fashion/a10_collecting_fifties_vintage_1.htm
• http://www.fiftiesweb.com/fashion/fashion-m.htm
• http://home.att.net/~boomers.fifties.teenmag/photos_1950s.html
  

Bobby Huxley: Not stocky but not thin either. Average but slightly muscled build. Black hair in duck's ass haircut. Always a cigarette in his hand or in his mouth. T-shirt and black jeans (or very dark blue denims) rolled up at the ankles. Black jacket. White socks. Creeper shoes. And iron hands (probably the toughest to draw, as the iron has to look marbled a bit or if that doesn't work, black shaded with grey).
He can also be seen wielding the Custodian raygun.

Zuzu Huxley: average height and weight of a 14 year old girl. Short black hair. Cats eye glasses. Sometimes seen in overalls or jeans and t-shirt. Consummate tomboy. Not one for frilly things. Patterns herself in a small way after her brother. I've always imagined her to look more or less like a cross between Scout from To Kill A Mockingbird and Lisa Loeb.

Tisandra: Green skin, long red hair often in a pony tail, but elven beautiful. Small nose, small ears, cover of a magazine cute. Sports her father's axe or a dagger. Can be drawn in either court finery (beautiful ornate dress in a very medieval elaborateness) or in clothing of the 50s era.

Clarence: Black man, lithe in height and weight. Think a very nimble Spider-Man physique. Small soul patch or goatee on his chin. Buddy Holly glasses. Usually in a black turtleneck and green khakis or very well dressed in general. Can be seen with a smoking pistol or a prop "bang" gun.

Rossum: Also average height and build. Bare polished metal on most of him. Robotic piping on his arms and legs. Fingers end in small firearm muzzles. Usually seen wearing a Benedictine robe. Large glowing eyes. No mouth to speak of. Has a nuclear heart within him, so his 'bullets' are energy based. He's supposed to look human enough to pass with enough clothes and in a dark environment. Think of C-3P0 from Stars Wars with a silver finish, less facial features and wearing Obi Wan's robe.

Noah: Large, lanky hulk of a guy. Almost caveman looking; scraggly beard, wild hair, powerful arms. Tattered clothes. Can pull open his chest and open his ribcage like a big iron gate. Utterly feral look to him, like a werewolf hobo almost.

The Beast: 1949 Merc. Chopped and cropped. Frenched headlights. Make the grill just as menacing as you can. Orange and red flames from the grill to just over the hood and doors (bladed style on the flames, not the wavy style of most flame jobs) on a glossy black paint job.