Caz Arven, also known as "Egg", is a silence from House Arven.
Caz is one of Mare Barrow's guards when she is held prisoner by King Maven Calore. He uses his ability as a silence to keep Mare weak and unable to use her lightning.
During the Wedding Battle, Caz was attempting to bring Mare to Maven's underground train to escape Archeon. Evangeline Samos kills him to help Mare escape.
Caz is described as being bald like his guardian kin. His head is round, white, and bald.
As a member of House Arven, Caz was a silence. A silence has the power to turn off the abilities of other Silvers and newbloods.