Guest Stars Chris Mulkey as William Pettifer Richard Herd as Milton Cooper Co Starring Ma'a Tanuvasa as Guard Mariano Farrar as Clarence Whitmour Daisy Kim Murakami as Yuki Uncredited Meaghan Rath as Alexa Alana Ian Anthony Dale as Earl Blackstone Scott Caan as Milton Cooper - 1941 Beulah Koale as Evan Kekoa Alex O'Loughlin as Steven McGarrett Sr - 1941 Jorge Garcia as Officer Mike Flanagan Chi McBride as Capt. Charles Sumner Taylor Wily as "Biggie" Tupa Dennis Chun as Sgt. Naskiuchi
