Teresa Mary "Tessie" O'Shea (13 March 1913 – 21 April 1995) was a Welsh entertainer and actress.O'Shea was born in Plantagenet Street in Riverside, Cardiff to newspaper wholesaler James Peter O'Shea, who had been a soldier and who was the son of Irish emigrants, and his wife Nellie Theresa Carr. O'Shea was reared in the British music hall tradition and performed on stage as early as age six, billed as "The Wonder of Wales". Convalescing after a serious illness in Weston-super-Mare, one day on the beach, the young O'Shea wandered off from her mother into the tent of a troupe of travelling performers and was only discovered when her mother recognised her singing Ernie Mayne's "An N'Egg and some N'Ham and some N'Onion"