O'Kane was a tough defender who played for Bohemians during his career in the League of Ireland. He was part of the Bohs team that won the FAI Cup in 1935, beating Dundalk 4-3 at Dalymount Park. Paddy captained Bohemians in the 1936 season  following his brother Mick who was captain in 1931 to become the 2nd set of brothers to captain the club. The first were the Hooper brothers, Willie and Richard. .
- FAI Cup:
- Bohemians - 1934/35
- Full International Caps for the Irish Free State
- Terry O'Rourke, Sean Ryan (1985). Gillette book of the FAI CUP. Irish Soccer Co-op.
- Bohemian FC match programme, 29 January 1989