Arcturus Thorne is a towering figure, standing well above the height of an average man, with a broad, heavily built frame that suggests both natural strength and years of disciplined conditioning. His proportions are imposing without being unwieldy, thick shoulders, long arms, and a solid, grounded stance that gives the impression of immovability.

He bears a square, stern face marked by sharp, angular features. His jaw is strong and pronounced, framed by a neatly kept, copper-red beard and moustache that accentuate his rigid expression. His eyes are narrow and intense, set deep beneath a slightly furrowed brow, conveying constant focus and a calculating mind. His gaze rarely appears relaxed, instead carrying a persistent air of scrutiny and control.

His hair is a vivid red, worn short and kept with strict practicality, reinforcing a disciplined, no-nonsense demeanor. His complexion is fair but weathered, with subtle signs of exposure to heat, labor, and long hours spent in harsh conditions.

Even out of armor, his posture remains rigid and upright, almost mechanical in its precision. Every movement appears deliberate and efficient, as though he conserves effort even in stillness. When standing among others, he is immediately distinguishable, not only for his height, but for the sheer presence he commands, as if he occupies more space than his physical form alone would suggest.