He is never seen without a wide, toothy grin. To him, a smile is a tool of power and control. He views showing any emotion other than amusement as a sign of weakness, famously stating that a smile "forces your enemies to wonder what you're planning." speaks with a trans-Atlantic accent, complete with actual radio static and sound effects (like canned laughter and jazz riffs) overlaying his voice. He despises modern technology and values old-school etiquette, theater, and showmanship. he takes genuine delight in the suffering of others—especially those who cross him—he operates under a strict, albeit twisted, personal moral code. He dislikes unprovoked posturing and prefers to deal in contracts and bargains. tall, incredibly thin, and possesses sharp, angular features. red and black tufts of hair that mimic deer ears, and small black antlers protrude from his head (which grow larger when he unleashes his full power). dresses in a dapper, pinstriped red coat, a dark bow tie, and a matching undershirt. He wears a monocle over his right eye and constantly carries a vintage microphone cane, which seems to have a sentient mind of its own.

Sad, blue version of Alastor

Calm, green version of Alastor

Anxious, purple version of Alastor

Happy, yellow version of Alastor

Loving, pink version of Alastor

Emotionless, white version of Alastor

Angry, gray version of Alastor