A former Australian international and New South Wales State of Origin representative forward, he played rugby for the Newcastle Knights whom he captained to the 1997 ARL premiership.

Harragon was a regular presenter of The Footy Show and as of 2013 is the Chairman of the Newcastle Knights Advisory Board.

Harragon captained the Knights to the 1997 ARL premiership title in a grand final against Manly-Warringah Sea Eagles, despite suffering from serious headaches and seizures throughout most of the season.

Harragon has since become a media personality, working for local Newcastle station NBN Television, before joining Channel 9 as a member of The Footy Show panel (on which his "That's Gold" segment became immensely popular), and as a rugby league commentator.

[6] Harragon was also a director of and is a life member of the Newcastle Knights, and is spokesman for NIB Health Funds and Subway.