Fallout: Brotherhood of Steel creatures

Humanoids

 * Ghoul
 * Glowing One
 * Human
 * Super mutant

Insects and arachnids

 * Radbug
 * Radscorpion

Mammals

 * Brahmin
 * Cat
 * Wild mutant coyote (Fallout: Brotherhood of Steel 2)
 * Dog
 * Giant rat

Reptiles

 * Deathclaw
 * Baby deathclaw
 * Experimental deathclaw
 * Mother deathclaw