As you likely know, human smart Als are
usually created using the brain of a recently
deceased human of exceptional intellect.
While ONI understandably prefers to use the
brains of their top scientists to create Als,
intelligent non-academics are also viable.
Because of the nature of their creation, Als
often retain some of the residual thoughts
and personalities from their donor.
Cortana has displayed striking similarities to
the personality of her donor, but that is likely
the result of being made from living tissue.
Therefore, any human character currently
living in the Halo Universe could possibly be