Though not excessively tall at just under 180 cm (5'10"), Eadie's solid build of around 95 kg (15 stone) gave him abundant pace and so much strength that once he was on the move, few opposing defenders were ever able to stop him when he ran into the backline.
Eadie's dominance in the '76 and '78 Grand Finals was recognised thirty years later with the awarding of retrospective Clive Churchill Medals for Man of the Match in those games.
Despite Manly declining in surprising fashion to miss the semi-finals for the first time in twelve years in 1979, Eadie's form remained excellent and he played in all 3 Ashes tests against a very lackluster touring Great Britain side.
He then went on to play in the inaugural State of Origin game at fullback for New South Wales in 1980,[8] though he would miss the mid-season tour to New Zealand with the Australian team that year.
A major injury that forced him to miss half of the 1981 season and saw him lose his test fullback spot failed to dim his brilliance: at the end of 1982, commentators[who?]
On his retirement from Sydney rugby league after Manly's loss to Parramatta in the 1983 Grand Final fans were left with the feeling he may still have a lot to offer the game.
Eadie played fullback, scored a try, and was man of the match winning the Lance Todd Trophy in Halifax's 19–18 victory over St. Helens in the 1987 Challenge Cup Final during the 1986–87 season at Wembley Stadium, London on Saturday 2 May 1987, in front of 94,273 people.
His son, Brook Eadie, won a President's Cup premiership with the South Queensland Crushers in 1996, but plans for a top grade career were thwarted by the demise of that club due to the Super League war.