Jack “Mad Dog” O’Billovich (June 5, 1942 – February 13, 1995) is the perfect example of the no-nonsense, tough football played during the Tommy Prothro era at Oregon State .
O’Billovich earned All-America honors as a junior and helped the Beavers advance to the 1965 Rose Bowl. His honors also include All-Pac-8 Conference, All-Coast and team captain. His photo was the cover shot for the NCAA Official Collegiate Football Record Book 1965, the only football player in the country being chosen for the honor. He concluded his collegiate career 
as one of a few Beavers to play in both the Hula Bowl and East-West Shrine Game. Jack was a 1966 OSU graduate in Forestry.
The Rose Bowl team finished ranked eighth in the country and ended the regular season beating top-20 Oregon in Eugene. Coach Prothro later said of O’Billovich, “He was the toughest football player I have ever coached. He was a very loyal Oregon Stater, but he was a fine human being to start with.”
Jack’s performance and passion on game day were mirrored in his training and practice during the week and in the off-season. Strength and Health magazine, February 1966, featured Jack in a story about his weight training program at OSU and his disciplined and healthy approach.
After graduating from OSU, O’Billovich was drafted by the Detroit Lions where he played one season, then played in 1967 with the Hamilton TigerCats of the Canadian Football League.
The “Mad Dog” remained a vocal supporter of the Beavers and treasured his collection of pre-game notes Coach Prothro presented at the pre-game meal before every game.
Tony O’Billovich followed his dad’s footsteps to Oregon State, where he was an outstanding linebacker in the early 1990s. Tony was the team’s MVP and co-captain in 1993, and later played with the Toronto Argonauts in the Canadian Football League.
Jack O’Billovich was one of the first individuals to be inducted into the Oregon State University Athletics Hall of Fame in 1991. His ashes were scattered at the Beaver’s Tommy Prothro practice fields.