Thaddius Deming

Thaddius Deming was a Human male serving in Starfleet in an Alternate timeline of the 24th century.

Captain is the Commanding officer of the USS Premonition, a Federation timeship that travelled from 2382 to 2376 to warn Captain Picard and the Federation of an iminent Borg invasion by Locutus.

His ship was originally badly damaged after being pursued into the past by two Borg Spheres, before being assisted by the USS Enterprise-E. Deming and his ship stayed to assist the Federation repel the Borg threat, and participated in the battle for Earth. Locutus's Cube was destroyed but he managed to escape in a Borg Sphere fleeing back in time to destroy the USS Enterprise-D shortly after it’s first mission to Farpoint Station. Fortunately the USS Premonition followed Locutus back and destroyed the Sphere before it could attack the Enterprise and alter history. (TNG game: Armada).