Foxen

3 Hearts and 1 Extra Life

3 Damage with Homing Tears

Starts with: 3 Coins, 1 Bomb, Guppy's Tail (Chance to give extra items when opening a chest), The Wh*re of Babylon, Bent Spoon (Homing Shots), 1up! (Grants an extra Life)

Kathina

4 Hearts with QX the Hierophant Card (Grants 2 Soul Hearts)

1.3 Damage with Tears (with a 1.5x)

Starts with: 3 Keys, Magic Mushroom (+0.3 Damage, Adds a 1.5x, +1 Size), Guppy's Tail.

Nightmare

2 Hearts

8 Damage

Starts with: Spider Eyes( shoots 4 tears instead of 1), The Wh*re of Babylon, Guppy's Tail.

Wolven 

1 Heart and 9 Extra Lives (thanks to the MEAT! Item, and Dead Cat gives him 9 lives)

8.3 damage with Tears (he doesn't blink when he uses Tears however)

Starts with: Guppy's Tail, MEAT! (+1 Heart, + 0.3 Damage), Dead Cat (set Hearts to 1, Gives 9 Extra Lives)

that's all for now.