Each one comes with his or her own special backstory and their hard work and commitment help make the event what it is - we're so grateful to them all.
Daw pob un gyda'i stori gefndir arbennig ei hun ac mae eu gwaith caled a'u hymrwymiad yn helpu i wneud y digwyddiad yr hyn ydyw - rydyn ni mor ddiolchgar iddyn nhw i gyd.