Jack Halle is a fictional character in the G-Saviour live-action movie.
Jack is portrayed as a sadistic and jealous individual who is willing to disregard lives to meet his own goals.
Jack Halle was once the commanding officer of Mark Curran. During a military exercise, the mobile suit of one of Mark's squadmates sent out a distress signal, as the engine had begun to fail. Mark requested to attempt rescue was ordered by Jack to leave him, who viewed the attempt as hopeless and not worth the risk of damaging Mark's MS. Unwilling to abandon a squadmate, Mark disregarded orders but failed to save him, as Jack's orders led him to hesitate. This incident led to the eventual retirement of Mark and the antagonistic relationship between the two.
Afterwards, Jack was present during a meeting of Settlement delegates, where he engaged with Mark in a political debate. When Mark freed Cynthia to investigate the sample of bioluminescence, Jack encountered them, forcing them to flee. He later framed Mark for the murder of a CONSENT guard, declaring Mark to be a traitor and shutting down Hydro-Gen.
During the battle of Gaea, Jack piloted a CAMS-13 MS-Rai, and engaged Mark in his G-Saviour Space Mode. Jack was defeated, and captured by Gaean forces but later released back to CONSENT after the latter recognized Gaean autonomy.