Real Name: N/A
Occupation: Criminal
Marital Status: Unknown
Base of Operations: Gotham
Height: Unknown
Weight: Unknown
Eyes: Brown
Hair: Black
First Appearance: Batman #112 (December 1957)
Created By: Bill Finger

Phillip "Phil" Cobb was a gangster with big ideas. He came to Gotham City intent on hiring a gang of his own and making it big, only to be laughed at when he tried to recruit the gang because he had no reputation. Steaming with anger, he vowed to prove himself to Gotham's mobsters, and when he noticed how modern day society was regulated by signs, signals and symbols, he saw the inspiration for his criminal career. Becoming the Signalman, he went on a spectacular crime spree using those signs and symbols as his motif.

In the Identity Crisis Signmalman was kidnapped by Dr. Moon and Phobia, he was tortured and it seemed that he had died via a video recording.

"One Year Later" however, he is a drug addled informant for Black Lightning, a possible result of the creation of the new Earth following the Infinite Crisis.