SPACE: ABOVE & BEYOND/FOX/1995-96 (Damaged Ear)
Lt. Colonel Tyrus Cassius (James Morrison), a.k.a. “Black Knight”, an In Vitro commanding officer of the 58th Platoon of US Space Marines in the year 2063.
“TC” McQueen suffers from an inner ear imbalance due to damage sustained from injuries while fighting aliens called Chigs.
His condition precludes regular space combat duties, and so he commands his forces from a ground station.
See also: Space: Above and Beyond