First Appearance: First Intermission 25 (Referenced)
Since the real world doll "Ken" exists, the [[unit] named Ken may be a Dollamancer. Likewise, since the real world doll is male, it is assumed Ken is male.
Since the word "Ken" is also an old English word for Perception and understanding and from which we get the word "Knowledge", as wekk as meaning "Range of vision", View, or sight, it may be that Ken is an Eyemancer as well.
Real World References
May be a reference to Ken from the Barbie doll toy line.