"Terrible" Terry Tate is a fictional character from a series of commercials called "Terry Tate: Office Linebacker," and he did not play in the NFL either in real life or in the commercials. The character is played by Lester Speight. Speight is a wrestler, actor and former college linebacker.
Speight was a Division 1 All-American Linebacker at Morgan State University. He tried out for the NFL but never made it. The character of Tate was created by Rawson Marshall Thurber for Reebok. In the ads, Tate aggressively tackles anyone not following office rules and policy. Tate was also featured in an ESPN program called "Mayne Street."