Detective Danny “Danno” Williams, a New Jersey detective who has transferred to Hawaii to be close to his daughter.

Danny has nearly 100 solved cases under his belt back in New Jersey. He continues to dress as he did in the states as a point of pride. He was recruited to be McGarrett’s partner.

Danny Williams Quotes

We had the Yankees. You and your old man had deep sea demolition classes or something.

Danno

Steve: So this stalker is what 10?
Danny: Ted Bundy was 10 once.
Steve: Yes he was..... Yes he was

Hawaii Five-0 Quotes

So it's safe to say an alien didn't explode out of his chest.

Junior [to Noelani]

Kono: Do you think they're...um
Grover: Knockin' em? Oh yeah