Philadelphia Police

Most bank robbers are careful to conceal their identity when pulling a job. They wear wigs, hats pulled down, Halloween masks. At least a pair of sunglasses.

But a brazen bank thief in the Philadephia area hit his tenth bank Thursday with the only face cover being a five o'clock shadow.

Police and FBI believe the suspect has robbed eight banks and attempted to rob two others this past month, with nothing to conceal his identity other then dark -framed glasses and an occasional ski or baseball cap.

The latest robbery took place Thursday at 1:37 p.m. at a TD Bank branch in Drexel Hill, Pa.

FBI spokeswoman in Philadelphia, Carrie Adamowski, told ABC news the suspect is in his late 20s to early 30s and about 5-feet-9.

"He [the suspect] has passes bank tellers threatening demand[ing] notes, but has not displayed a weapon. Still, he is considered armed and dangerous due to the potential for escalation into violence. Thankfully, no one has so far been injured," Adamowski said.

"Basically, he's just been lucky", said Adamowski, when asked how an undisguised robber gets away with so many bank robberies. "These robberies have taken place across several different jurisdictions. As soon as it was recognized that we had a serial robber on our hands, we were able to consolidate everyone's efforts into following potential leads."

The FBI's Philadelphia Division of Violent Crime Task Force as well as Philadelphia police urge anyone with information about these robberies or the subject to call the Philadelphia FBI at (215)-418-3000.