He spent his amateur career in the British Columbia Hockey League, and was selected in the third round of the 1999 NHL Entry Draft, 84th overall, by the Carolina Hurricanes.

Fast played for his hometown Fort St. John Flyers as a 14-year-old before moving on to the Prince George Spruce Kings in the BCJHL.

He was member of the team for famous outdoor event, The Cold War along with fellow defenseman John-Michael Liles.

Near the end of the 2002–03 season, Fast signed a professional contract with the Hurricanes and joined their American Hockey League affiliate, the Lowell Lock Monsters.

Fast was signed by the Los Angeles Kings and played the 2005–06 season with their AHL club, the Manchester Monarchs.