Zachariah is

Zzz, a serious snooze fest he really needs some new material the whole must catch Winchesters because I no longer have any respect of any kind thing is getting a bit old

An annoying dick with wings as Dean so kindly put it

Care's about what people think of him way way too much

Hired then fired then hired again, the higher ups really need to decide if they want him or not

Arrogant and egoistic I think he may be over compensating a little

Ruler is stuck to far up his butt I don't even think surgery would help him

Is a bit of a workaholic (well I say a bit)

A very very sore loser

His hair is receding a bit must be the stress