Gotta love Garvan! This bruiser with a heart of gold came out of nowhere in book 2 as a side character and wasn't happy until he moved into the main character list - which he did pretty fast.
At the end of Perses he was in a bad place and things don't get better for him in Cronus. I'm not sure how he does it but he keeps joking - even when he's imprisoned and facing a whole load of trouble. Definitely a 'glass is half full' kind of guy