He was selected by the St. Louis Blues in the 1968 NHL Amateur Draft and played for six teams during his career.
Besides the Blues (1968–69 to 1969–70 and 1981–82), Edwards played for the Los Angeles Kings (1971–72 to 1976–77), Cleveland Barons/Minnesota North Stars (1976–77 to 1979–80), Edmonton Oilers (1980–81), and Pittsburgh Penguins (1981–82).
From 1972 to 1976, he teamed with Rogatien Vachon to give the Los Angeles Kings one of the best goaltender tandems in the NHL.
Edwards' best season was 1974-75 when he posted a 2.34 goals-against average in 27 games while backing up Vachon.
They were a close runner-up for the 1975 Vezina Trophy, losing out to Bernie Parent of the Stanley Cup champion Philadelphia Flyers by a mere 4 goals.