Sam has curly blonde hair, blue eyes, fair skin, and an oval shaped face. Her wardrobe mostly consists of tomboyish clothing.

Sam is portrayed as a tomboyish, sarcastic, aggressive girl, who has no respect for the authority or other people (except Carly, Freddie, Spencer, and Gibby, sometimes).

Sam Puckett is also portrayed as lazy. She often avoids doing work unless forced to. Her disgust of work even led to her having a near nervous breakdown when she had to get a job.