Thomas Arthur "Tom" Croydon is a fictional character in the long-running Australian police drama Blue Heelers, portrayed by John Wood. A long-serving member of the police force, Tom has decades of experience of being a police officer in a small country town, and an attitude which earns him the respect, trust and even affection of his subordinates. As the most senior officer in the country town of Mount Thomas, he frequently acts as a mentor and father figure to the junior members of the station, but eventually a series of personal tragedies put him into a downward spiral which threatens both his personal and professional lives. He is one of two characters, along with Chris Riley, to appear in all thirteen seasons of the show, and is the only character to appear in all 510 episodes to air.