Kaidan Alenko is a L2 Biotic Sentinel under the Systems Alliance Navy as well as the second Human Spectre. Having been exposed to Element Zero while in the womb, Kaidan possesses immense biotic capabilities and prowess. However, he was given the controversial L2 implants which, luckily for him, causes him frequent headaches every time he uses his biotics. (art by AndrewRyanArt on Deviantart!)

romanced Kaidan btw! don't interact if you don't ship Shenko/Mshenko!