As a football player he played for the University of Utah in college and then a series of professional teams after being selected by the St. Louis Rams in 1995.
He spent a season with the Jacksonville Jaguars in 1996, the Calgary Stampeders from 1997 to 2001 and ending with the Los Angeles Avengers of the Arena Football League (AFL) in 2001.
As an actor he appeared in feature films including Bringing Down the House, Mr. 3000, Slow, The Luck of the Irish, as well as television shows and commercials.
Following his NFL years, Miller joined the Calgary Stampeders of the Canadian Football League, where he led his team to the Grey Cup Championship in 1998 playing defensive end.
In December 2013 he returned to Utah with his first wife and children to receive hospice care for end stage cancer.