Todd Clarke was born in 1951, playing his footballing career as a goalkeeper.
Clarke played in the South Australian state league for Adelaide Beograd, before moving to Sydney where he played for NSW state league team Hakoah in 1976.
He continued with the club, renamed Sydney City, as they joined the then-new National Soccer League in 1977.
Clarke made his Socceroos debut against China in 1975.
His last match was in Sydney against Greece in 1978, making 37 appearances in total (21 'A' internationals) for the national team.