Chuck McGill

Charles Lindbergh McGill is Jimmy's older brother, a brilliant and respected founding partner of Hamlin, Hamlin & McGill who suffers from electromagnetic hypersensitivity — a condition that confines him to a house lit by lanterns and wrapped in space blankets. Chuck is one of television's most fascinatingly constructed antagonists: he is not wrong about Jimmy's character flaws, but his methods of opposing Jimmy are driven by jealousy and resentment rather than principle.

Chuck's fundamental wound is that their con-artist father loved Jimmy more despite Jimmy being the less accomplished son. Chuck channeled this hurt into becoming the most disciplined, ethical lawyer he could be, but he could never accept that Jimmy might also succeed in the profession Chuck considers sacred. When Jimmy passes the bar, Chuck secretly sabotages his career at HHM, unable to share the one arena where he feels superior.

The "Chicanery" hearing in Season 3 is Chuck's undoing. Jimmy exposes his electromagnetic sensitivity as psychosomatic, humiliating Chuck publicly and destroying his professional credibility. Abandoned by his firm and confronted with the truth about his illness, Chuck spirals into a devastating breakdown, ultimately taking his own life. His death is the catalytic event that accelerates Jimmy's transformation into Saul Goodman.