Calgary police, along with the Canadian Bankers Association, are looking for the person responsible for eight bank heists in various cities in Western Canada.
The association is offering a $10,000 reward for information that leads to an arrest.
"Fighting bank robberies and protecting our staff and customers is our No. 1 priority, and our message is, if you rob a bank you will get caught," said Mal Chivers, Manager of Fraud and Security at the Canadian Bankers Association.
The suspect, who is nicknamed the "Old Man Winter Bandit" by authorities, has robbed banks in Calgary, Winnipeg and Edmonton.
Police say, in most of the robberies, the man either held up a note to the teller or verbally demanded cash. In some of the cases, police say he told the teller he had a gun.
"We just need that one phone call telling us who he is," said Staff Sgt. Bruce Walker of the Calgary police Robbery Unit. "It’s worth $10,000 to someone who makes that call and assists us with identifying a suspect, which leads to his conviction."
The suspect is described as white, 50 to 60 years old, around five foot nine inches tall with a medium build. He has been both clean and unshaven during the incidents and has short grey hair.
Police also say the man usually wears sunglasses on the top of his head.