Another useless Trivia thread.

[Brian37]

Ok don't let your volcano explode over this one.

She is in the new version, name character's name and actress. Hint "SHE'S SMOKEN HOT"

But she replaced a male character in the new version(but kept the character's name the same) in the original cop series. Name the orignal actor.

AND, part three same show

This show, had former 18 year cop vet, read for the part of a villain but ended getting the part of a cop. Name the actor and character.

EDIT, also related to this show but not related. This 80s porn star took her "stage name" last name from the lead actor's last name. Yes I have way too much time on my hands. And if you get this last one, you also have too much time on your hands.

Had to read through this a few times, but I think I've got it:

The series is 'Hawaii 5-0'.  The character is Detective Kono Kalakaua.  Played in the original by Zulu (real name:  Gilbert Kauhi ) played in the remake by Grace Park.

The porn star you're looking for is Traci Lords, who took her surname from Jack Lord, who played McGarrett in the original series.

I hope this makes up for my getting Curtis Armstrong's name wrong.  

Boru

You missed one, the show also had a former REAL 18 year vet cop, who became a character on the show, name the actor and character.

Yes that makes up for it, I like my Boogers on point(and yes I hate it when people say "on point", or "my bad", or "same difference".....) But that is a different thread.