A bespectacled bank robber with a "bad mullet" wig has struck for the fourth time this month, Toronto police say.

The most recent robbery happened on Friday night — the same day police released security footage from one of his earlier robberies.

He walked into a TD Bank branch near Avenue Road and Lawrence Avenue West shortly before 8 p.m., demanded money, brandished a handgun, and walked away with an undisclosed amount of cash, Staff-Insp. Mike Earl told CBC News. Nobody was hurt.

Earl said the robber was "wearing his mullet" during Friday's robbery — the same reddish wig he sported Thursday when he was caught on security camera robbing a Scotiabank branch at the Northumberland Mall in Cobourg.

He was also caught on tape robbing banks in Toronto on Feb. 11 and Feb. 19, police said.

In each case, police say he entered the bank, handed the teller a note demanding cash, either claimed he was armed or produced a handgun, filled a black satchel with cash and walked away.

He's described as white, in his 40s, and stands between between five-foot-six and five-foot-seven. The man was clean-shaven with a thin build and wearing prescription glasses.

Police are asking anyone with information to contact them at 416-808-7350 or Crime Stoppers anonymously at 416-222-TIPS (8477).

"Any information would help," Earl said.