John Madden was a football coach and then he was a broadcaster and then they made a video game with his likeness and used his name. From Wikipedia:
In 1984 Hawkins approached Madden. He and game producer Joe Ybarra arranged a follow-up meeting with the broadcaster during an Amtrak train trip over two days because of Madden’s fear of flying. The EA executives promised that the proposed game would be a sophisticated football simulation, and asked the retired Oakland Raiders coach for his endorsement and expertise. Madden knew nothing about computers beyond his telestrator but agreed; he had taught a class at the University of California, Berkeley called “Football for Fans”, and envisioned the program as a tool for teaching and testing plays.