|Isai Von Castrin|
Full name, King Isai von Castrin of the Kingdom of Castrolla, also known as Isai is the current King of Castrolla, and an EPF Agent although penguins think he should be fired after neatly giving coins to crooks in Coins for Change 2012.
Isai was born in the Upper Castrollan Island of Castrella to Queen Isabella and King Carlos IX. He was very wealthy as his uncle King Carlos VIII had just died and left a big fortune behind.
When his parents died when he was 18 he became the King. When he was 19 he traveled to Club Penguin where he lived until he got homesick and returned to Castrolla.