"We finally get out of here and the 'final frontier' was already settled. And the residents don't seem impressed by the view. Or the dangers."
Kaidan Alenko is a human Sentinel a Systems Alliance Marine. While serving onboard the SSV Normandy, he was a Staff Lieutenant and head of the ship's Marine detail. He was also a initial member of Commander Shepard's squad. Kaidan is a biotic wired with the controversal L2 implants, which are known to cause severe neurological damage to the user. However, he is fortunate enough to only suffer from occasional severe migraines.
Kaidan Alenko is voiced by Raphael Sbarge