な奴だ

is a ... person

→ だ

phrase Common #6,243

is a ... person Follows an adjective to describe someone. 奴 is a casual, often blunt or dismissive word for a person, roughly “guy.”

JA: 彼は親切な奴だ。

EN: He’s a kind guy.

What a greedy bastard.

— Брат 2 (2000)

What a stubborn guy.