After kicking butt and taking names in Nanda Parbat and Starling City as Nyssa al Ghul on “Arrow” and in Los Angeles as Det. Rebecca Lee on “Training Day,” Katrina Law’s taken her weapons training over to the island of Oahu to fight crime as former staff sergeant and new Five-0 Task Force member Quinn Liu on CBS’ “Hawaii Five-0.”

The actress joined the rebooted CBS crime-drama as a series regular at the start of Season 10, which began airing in September, and she recently spoke with International Business Times about her new role, what her first day was like, the upcoming “Hawaii Five-0” and “Magnum P.I.” crossover and more.

International Business Times: How did this opportunity to join “Hawaii Five-0” as a series regular come about?

Katrina Law: I did a pilot for CBS called “Alive,” and I thought it was a beautiful project. Unfortunately, it didn’t get picked up, but then they called me up and said, “Hey, would you like to join ‘Hawaii Five-0?’” And here I am, because, obviously, the answer is yes. All day, yes.

IBT: Were you nervous to join a cast of a show in its 10th season?

Law: Oh, of course. It’s a daunting experience. Especially when you’re joining a show like “Hawaii Five-0,” which is already iconic because of the original series. And then you bring in the reboot of it and it becomes just as iconic in real-time, and then now you’re on Season 10. It’s stepping into some pretty big shoes, and Alex [O’Loughlin, who plays Steve McGarrett] and Scott [Caan, who plays Danny Williams] they’re amazing at what they do, and the cast they have right now, everyone is just brilliant.

It was like being the new kid on the first day of school walking in and I was nervous. I was so nervous, in fact, that my first scene was with Ian Anthony Dale [who plays Adam Noshimuri] and all I had to do was walk up, identify myself and then flash my badge at him, and I walked up, completely forgot my name and ended up chucking my badge at his face. And I was sweating in inappropriate places. It was a mess. I actually had to go into a corner and mentally calm myself down.

IBT: Prior to this show, you’d done a lot of training for your other action-packed shows, but anything specific for this one?

Law: On set, we have former Navy SEALs, who are technicians, and we also have former Honolulu Police officers, who are basically on set every single day. So, anytime there’s questions to be asked or any advice to be given, they’re on-hand to do it.

IBT: Is there an upcoming episode or storyline you’re excited about?

Law: I’m really excited for the “Magnum P.I.” crossover with “Hawaii Five-0.” Just having the cast members on set and being able to jump onto your sister set or your brother set, whatever you wanna call it, is a lot of fun. And inviting them to the “Hawaii Five-0” headquarters, inviting Magnum [played by Jay Hernandez] and Higgins [played by Perdita Weeks], it was a lot of fun. It was a nice, new energy, and I hope that those continue throughout the years, if not even more often during the season. So, I loved that one. I’m looking forward to seeing how that plays out.

Fans can catch Law on “Hawaii Five-0” when it airs new Season 10 episodes on CBS on Fridays at 8 p.m. EST, and, aside from filming her TV show, the actress is currently helping to raise money to build a school in Senegal with the buildOn organization and those interested in donating to the cause can do so on her fundraising page here.