Keiran is a man in his early to mid twenties, standing 5'9" tall with a slim build which slows a little more muscle tone than your average wizard.  While quite attractive when dressed up, most of the time he is dressed in more functional attire for exploration or experimentation.  His shoulder length brown hair is usually loosely kept, tied back in a simple ponytail.

He usually speaks in a controlled measured tone, except when discussing magical phenomena, especially unfamiliar or new.  Then his tempo tends to increase significantly and he jumps from topic to topic quite quickly, often too fast to follow.