Samuel William Winchester

Sam has shaggy brown hair that grows longer and smoother in later seasons; he had a fringe as a child as well as in the first two seasons. Over the course of the show, he grew the fringe out. His eye color seems to change; sometimes they appear light green, sometimes they appear brown, etc. He is noted by other characters to be handsome. Sam is very tall, 6′ 4″ (193.04 cm) having a muscular build with broad shoulders and a muscular chest. This is especially ironic considering that he used to be teased for being short and wiry as a teenager. Like Dean, Sam often wears multiple layers of clothing (namely plaid shirts) as well as jeans and boots. In Season 8 of the series, Sam, who is known for always having a clean shaved face, has been sporting some facial stubble similar to Dean. In season 14, Sam grew a beard in the three weeks that Dean was possessed by Michael, mainly due to running himself ragged while hunting for leads. He later shaves it off in Mint Condition, after Dean made fun of him.

Sometime before Jus In Bello, Sam got a tattoo on his chest of the anti-possession symbol to protect himself from demons. He kept it until Road Trip when Castiel removed it so Crowley could go inside Sam and help him expel Gadreel. He got it restored at some point off-screen as it is seen again in later seasons.

A cut on the palm of his left hand was sustained during the episode Meet the New Boss. He was taught by Dean to use it as a way to discern hallucination from reality. Although the scar has healed by now, Sam still presses upon his left palm whenever things get too difficult to believe.

In The Benders, a police file on Sam states his eyes are brown; however, his FBI file in later seasons lists them as blue.