He won five caps for Wales, and in his first international game faced the touring South Africans.

While a member of Neath he earned his first Welsh cap against the touring South Africa team.

Perrett was reselected for Wales in the 1913 Five Nations Championship, one of only two Welsh players to appear in all four matches of the campaign; the other being Neath teammate Glyn Stephens.

[4] He was subsequently commissioned as a second lieutenant, and transferred to the 17th Battalion of the Royal Welsh Fusiliers with seniority from 27 June 1917.

[6] Perrett is often left out of lists of the Welsh international war dead due to his supposed defection to the professional game.