Surveillance cameras caught the suspect as he robbed a Bank of the West branch near Goldenwest Street and Warner Avenue last Thursday.
The suspect gave the teller a note demanding money. The note said he had a gun, but no one saw a weapon.
Authorities said the suspect fled the scene in a white, two-door coupe.
The suspect is described as Asian, 5 feet, 7 inches tall, with short brown hair and a mole on his cheek.
Anyone with information is urged to call Huntington Beach police at (714) 375-5066.
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