Ray Pratt is a career criminal who stole $100,000 from Carlton Worthy and in the process murdered Deacon, Frankie Wells' brother. Ray used the stolen money to set up numerous illegal gambling operations in New York City. Frankie, working as a bounty hunter, tracked him down but he escaped with the help of Harper Rose. He later betrays Harper and tries to kill her but ends up in shootout with Frankie, Reese and Worthy's men. Although Harper is able to defuse the situation, Ray still tries to kill her only to be shot by Reese and later arrested.
Ray Pratt stole $100,000 from Worthy, prompting the later to track him down using Frankie Wells. He captures Frankie and Reese and interrogates them about Ray's whereabouts but they manage to escape. Worthy follows them to Ray's hideout and a shootout ensues between the various parties. Harper convinces Worthy to leave the standoff by handing over Ray's flash drive containing proof of Worthy's illegal transactions. Reese later has him arrested by the NYPD.
Wolfram is Elizabeth Bridges' ex. Elizabeth is seen arguing with him on several occasions which prompts Finch and Root to wrongly believe that he might be the reason behind Elizabeth's number coming up.