Eaton attended Governor John R. Rogers High School, where he was a two-way lineman. As a senior, he was an All-State selection and named the Prep Lineman Of The Year by the Washington State Sportswriter Association. He accepted a football scholarship from Washington State University, but didn't play in his first year because of failing to meet the requirements of Proposition 48. As a sophomore, he was a backup at defensive tackle, totaling 15 tackles and one sack. As a junior, he became a starter at defensive tackle, making 62 tackles, 6 sacks, 2 fumble recoveries and one pass defensed. As a senior, he recorded 69 tackles, 4.5 sacks, 2 passes defensed, 2 blocked kicks and received the Morris Trophy as the best offensive and defensive lineman in the conference. He finished his career with 23 starts in 35 games, 146 tackles, 11.5 sacks and 3 fumble recoveries.
On September 28, 1995, he was signed to the Cleveland Browns' practice squad. He was promoted to the active roster for the last two games of the season, although he didn't play after being declared inactive. In 1996, the Browns moved to Baltimore and were renamed as the Ravens. He was cut on August 19.
On August 27, 1996, he was signed by the New England Patriots. On November 28, he was promoted to the active roster for the final four games of the season and 3 playoff games. He had 4 tackles, one sack and 2 passes defensed. He added 3 tackles and half a sack in the post season. In 1997, he was a reserve player until earning a start in the season finale against the Miami Dolphins. He finished with 21 tackles, 3 passes defensed and one sack. In 1998, he earned the starting nose tackle job, posting 69 tackles, 6 sacks, 3 fumble recoveries, 4 passes defensed and one forced fumble. He also received AFC Defensive Player of the Week honors against the Pittsburgh Steelers, after sacking quarterbackKordell Stewart three times and forcing a fumble that was recovered for a touchdown. In 1999, he recorded 53 tackles, 3 sacks, 3 fumble recoveries and one forced fumble. In 2000, he registered 78 tackles, 3 sacks, 3 passes defensed and one forced fumble. Against the Buffalo Bills he earned special teamsplayer of the week after blocking 2 field goals, which included the potential game-winner in overtime. He was declared inactive in 2 games with a leg injury.
Seattle Seahawks
On March 9, 2001, he was signed as a free agent by the Seattle Seahawks to a four-year deal worth $10.7 million and was team up with defensive tackle John Randle who was another free agent signing. He finished with 57 tackles, one sack, 2 passes defensed, one forced fumble and one fumble recovery. In 2002, he registered 73 tackles, one sack, 3 passes defensed and 3 fumble recoveries. On August 12, 2003, he underwent surgery on his right knee. On August 29, he was placed on the injured reserve list. On September 3, he had an emergency knee surgery to remove an infection. He was released on February 27, 2004, after not being able to recover from his previous right knee surgeries.
Dallas Cowboys
On August 25, 2004, he was signed by the Dallas Cowboys as a free agent to a one-year contract worth $660,000, to be a run specialist. He started the season opener against the Minnesota Vikings in place of a suspended Leonardo Carson. He would be a backup for the next 5 contests, totaling 10 tackles and one quarterback pressure. He was cut on October 30.
Personal life
Eaton was arrested in Monroe, Washington on Saturday, July 21, 2007, on domestic violence charges. In 2011, he was hired as the defensive line coach at Central State University. In a November, 2011, interview with the Dayton Daily News, Eaton claimed that Bill Belichick paid him to start fights with other players during practice. Eaton is now featured as a regular guest host on Seattle, Washington radio station 99.9 FM KISW's BJ SHEA Morning Experience. In a segment called "Hawk-Talk" where he regularly gives predictions and post game analysis of the Seattle Seahawks performance. His segment is each Monday morning usually in the 9 o'clock hour.
