[4] He attended Coláiste Ráithín, a Gaelscoil in Bray and Wicklow Educate Together National School.

[5] Walsh-Peelo began his musical career as a boy soprano at the age of seven, winning many prizes throughout his early years.

He was eventually cast in Mozart's Magic Flute aged twelve, which toured Ireland.

[6] Walsh-Peelo made his onscreen acting debut in John Carney's 2016 musical comedy-drama film Sing Street alongside Lucy Boynton.

[13] Walsh-Peelo starred opposite Clara Rugaard in the British-Spanish World War II drama Love Gets a Room.