Martin was one of the top linebackers in the NFL during his 12 seasons and made the Pro Bowl twice during his career, in 1983 and 1984. Drafted in the 12th round, Martin was initially a 210 lb tweener, undersized for a Linebacker and slow for a Safety, but eventually bulked up to 220-225. In 1978, his second year, Martin started 8 games, filling in at Inside Linebacker By 1979 he settled in at the weak-side LB spot, becoming a mainstay on the Raider defense, assisting the Silver & Black to 2 Super Bowl victories (1980, 1983) and having an outstanding performance in each one. In Super Bowl XV, Martin recorded a Super Bowl record 3 interceptions from Philadelphia Eagles quarterback Ron Jaworski, and returned them for 44 yards. His 3 interceptions were not only a Super Bowl record, but they also tied linebacker Chuck Howley's record for career Super Bowl interceptions (later defensive back Larry Brown tied this record as well). Among these players, Martin is the only one to record all 3 of his interceptions in one game. In Super Bowl XVIII, Martin broke up a third down pass on his own 7-yard line in the second quarter, sacked Joe Theismann once, tackled Washington Redskins hall of fame running back John Riggins for no gain on a fourth down and one conversion attempt deep in Raiders territory on the last play of the third quarter, and recovered a fumble in the final period.
In his 12 NFL seasons, Martin recorded 14 interceptions, which he returned for 225 yards and 4 touchdowns, along with 10 fumble recoveries, which he returned for 122 yards and two touchdowns. He also recorded 33 and a half official sacks (sacks were not an official statistic until 1982, Martin's 5th season).
Martin has returned to work at USC, where he is a programmer and manager of technical and user support services in the Information Sciences Institute. Martin and his wife Regina have two daughters: Jessica, who played volleyball at Bethune-Cookman University, and Jade, a softball player who attended Morgan State University. Now, in his later years, he can be found living in Santa Maria, California. Every Sunday he is inside the local K-Mart selling his autographed pictures for five dollars.