Mage:- 

Race: Dark Elf (duh)

Classes: Apprentice/Scholar, Druid, Caster. (You could go Dominator and Soul stealer route or Archmage and any other mage classes if you want)

Stats: 

Physics-1

 Magic-5

Wits-5

Charm-3

Sex-1 

Tame-1 

Timid-1

Tank/DPS:-

Race: Dragonkin (highest health health multiplier plus fire resist)

Classes: Fighter, Dragonknight, Paladin, Templar (I used paladin as it gives more resistances and health and defence than Knight as well as holy attacks. Dragonknight got some great stats and  AoE attacks. Templar boosts utility by accessing basic magic)

Physics-5 

Magic-4 

Wits-4 

Charm-1 

Sex- 1

Tame-1 

Timid-1 

Melee DPS 

Race: Seraph (second highest hp multiplier + light resist)

Classes: Fighter, Valkyrie, Knight, Templar (Valkyrie is awesome at boosting speed. It almost always goes first especially with a spear. Knight boosts hp and Defence while providing a speed boost. Templar for magical utility.)

Physics-5 

Magic-4 

Wits-4 

Charm-1 

Sex-1 

Tame-1 

Timid-1 

Specialist/DPS 

Race: Beastkin/Halfkin Cat (Boosted evasion stacks well with the classes)

Classes: Rogue, Assassin, Thief, Attendant, Alchemist (Good melee support unit with great evasion and critical chance especially with a dagger. Thief helps in getting those pesky chests open as well as getting through those traps and Attendant helps with support in combat when you have necessary consumables. Alchemist provides great firepower if you have unstable potions as well as bonus to healing healing.)

Physics-5

Magic-3

Wits-5 

Charm-1 

Sex-1 

Tame-1 

Timid-1 

Archer 

Race: Beastkin/Halfkin Wolf  (You could try Tribal Elf instead if you want, but I like the Hunting bonus better)

Classes: Archer, Hunter, Ranger, Sniper,

(Pure ranged character who snipes at enemies from the backline. Can also double as hunter for meat. Great AoE too.)

Physics-5 

Wits-5 

Magic-3 

Charm-1 

Sex-1 

Tame-1 

Timid-1 

These are the combat builds that I've tried. I'll post non combat builds later. Also, if character is PC get charm to 5 as it'll help in negotiations. 

First off these are just my opinion on things and don't necessarily lead to the most fun, also they just apply to the game as it is now.

1.  You should always aim to have combat characters be solo clear bad-asses that don't rely on mana to do their thing.  Characters capable of clearing dungeons by themselves level much faster and can power-level non-combat characters more efficiently leading to far faster production growth.  Mana reliance tends to lead to long downtimes or unsustainable crystal use.

2. The most important ability to secure early on is an all enemy damage source so the best combat races tend to be orc and fairy.  Berserker gets a physical all enemy earth attack and druid gets a magical all enemy earth attack, neither requires mana.  Other races get druid but only fairies get +8 mattack so they always do more damage for the same equipment and classes. 

3. An often overlooked combat class is succubus.  They can drain other's lust to give themselves a two day buff worth 15% to attack and mattack.  This is huge.

4. The best healer is attendant.  Bandages scale with target health and don't require mana.  The ability to heal and attack is also important since if you take a whole round healing your effective healing is reduced by the amount of damage you take that round.  This is much less important in multi-member parties but even then dedicated healers should use bandages when they can to conserve mana.  Cloth is much cheaper and easier to get than energy crystals.