Cast Casualty
Nid oes modd chwarae darnau sain a fideo ar eich dyfais

Casualty's Welsh challenge

1 Mawrth 2017 Diweddarwyd 12:02 GMT

To celebrate St David's Day on 1 March, BBC Cymru Fyw challenged well known TV stars to learn a few words in Welsh. How did the cast from Casualty get on with pronouncing Welsh words for parts of the body?