guy, slave, manservant, fellow

この田舎者めが。

You clown you.

やつは僕を裏切ったんだ！

He stabbed me in the back!

欠点はあるけれども、彼はいい奴だ。

For all his faults, he is a good fellow.

新しいバイクは買えないのでこの古いやつでなんとか間に合わせなくてはならないだろう。

I can't afford to buy a new bike, so I'll have to manage with this old one.

暇なやつだ。

Don't you have anything better to do?

彼は親切でいいやつだ。

He is a kind and nice fellow.

彼はなんて嫌なやつだ。

What a disagreeable fellow he is!

彼はずいぶん変なやつだ。

He is really a queer fellow!

彼は嫌な奴だ。

He is an unpleasant fellow.

陰険な奴。

You are a snake!