[citation needed] Miller launched his professional football career with the Dallas Texans in 1962.

Miller caught two touchdown passes in Super Bowl II in 1968, the only scores from quarterback Daryle Lamonica in the Oakland Raiders' 33–14 loss to the Green Bay Packers.

He also worked at Hutchinson Central Technical High School as a substitute teacher.

He started up a sports bar and later an exotic dance club in Miami called the Bird's Nest for several years.

He is on the list of retired players that will receive brain testing for Alzheimer's disease, memory loss or dementia as part of the NFL plan to address injuries linked to concussions.