Mark O'leary ha jugado con 12 compañeros de equipo a lo largo de su carrera.

Player Team(s) Games
Shawn Atupem - detalles
UCC Demons (IRE-1)
4
Shane Coughlan - detalles
UCC Demons (IRE-1)
4
Carlton Cuffe - detalles
UCC Demons (IRE-1)
3
Shane Duggan - detalles
UCC Demons (IRE-1)
3
Kyle Hosford - detalles
UCC Demons (IRE-1)
4
Niall Murphy - detalles
UCC Demons (IRE-1)
3
Daniel O'mahony - detalles
UCC Demons (IRE-1)
3
Luke O'mahony - detalles
UCC Demons (IRE-1)
4
Brian O'neill - detalles
UCC Demons (IRE-1)
2
Niall O'reilly - detalles
UCC Demons (IRE-1)
4
Ciaran O'sullivan - detalles
UCC Demons (IRE-1)
4
Daniel O'sullivan - detalles
UCC Demons (IRE-1)
2