I'm excited about this! I think Lahti is great, and I could see her being pretty badass as McGarrett's mom. I can also think she looks like she could be his mom physically, and is around the right age. I'm relieved they didn't pick someone who's 45 and ask us to buy that she's Steve's mom. I can't wait to find out where she's been and how/why she killed Wo Fat's dad.