Anthony Gerard Percy was born in Sydney in 1963 and his family moved to Cooma, NSW, in 1966. His parents Joan and John – God rest their souls – were given the gift of seven children, six of whom survived – four girls, two boys.

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He was educated at St. Patrick’s Primary and Monaro High School, Cooma, and St. Joseph’s College, Hunters Hill. He earned a Finance degree from UNSW before studying for the priesthood at St. Patrick’s College, Manly.

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Ordained in 1990, he was appointed in various parishes across the Archdiocese of Canberra and Goulburn.

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He studied in Washington, D.C., from 1999 and completed a doctorate in sacred theology in 2003, specialising in the social teaching of the Church, focusing on the importance of private property and private initiative for the maintenance and promotion of the common good.

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He returned to Australia to be Parish Priest of Goulburn, contributing significantly towards the restoration of Sts. Peter & Paul's Old Cathedral - the world's only greenstone Cathedral.

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In 2008, George Cardinal Pell asked Bishop Tony to be rector of the Seminary of the Good Shepherd, Homebush, NSW. He completed this important ministry in 2014.

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He returned to the Archdiocese of Canberra and Goulburn as Vicar General in 2015, completing this appointment in 2022.

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Since 2015, he has served at St. Christopher’s Cathedral, Canberra, as Parish Priest of St. Anthony of Padua Parish, Wanniassa, ACT, and finally, from 2023 until 2025, as Parish Priest of St. Gregory’s Parish, Queanbeyan, NSW.

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On 11 February 2025, he was named auxiliary bishop of Sydney and titular bishop of Appiaria and consecrated as a bishop at St Mary’s Cathedral on 2 May 2025.