Helmsmen are Kiriath creations that appear as Kiriath machines with intelligent minds.  They were typically a part of Kiriath fireships.  They do not have limbs to move themselves.  They were summoned from the void by the Kiriath and bound into a dependency so that they could be controlled.

Only a few remained after the Kiriath left.  Those left behind are angry and feel abandoned, resentful that the Kiriath would not take them with them.  However, they still uphold the Kiriath mission.

Some of the named Helmsmen are:

See also Warhelm.