looker

One that looks, especially a spectator or an onlooker.

A very attractive person.

See louker.

One who looks or watches; one who seeks or explores.

Specifically—

A shepherd or herdsman

An inspector.

One who looks.

A person who is physically very attractive, especially a beautiful woman.

a spectator; an onlooker; one that looks on, but has no agency or part in an affair.