Police released photos of the suspect Wednesday.
The robbery occurred just before 2 p.m. Feb. 5 at Banner Bank, 8519 Evergreen Way.
A man approached the teller and demanded cash.
No weapon was displayed, Everett police officer Aaron Snell said.
Detectives believe a small red station wagon or minivan was waiting for him.
The suspect, who is white, is described as medium height and build. He wore a black bandana over his lower face, a white hooded sweatshirt and sweatpants. The sweatshirt had a large "87" on the front.
Anyone with information about the robbery is asked to call 911, the Everett Police Department tip line at 425-257-8450, or Crime Stoppers of Puget Sound at 1-800-222-8477.
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