I would say that she did - Ivana played a Serbian kidnapper/terrorist who got very physical. Made me wonder about what we missed out on the DS pilot not being picked up - she certainly could have been an awesome Angelique.
About Hawaii Five-0, it had a major connection to Dark Shadows alumni - John Karlen, Lara Parker, Dennis Patrick, Kathryn Leigh Scott, Thayer David, Dana Elcar, Keene Curtis, Abe Vigoda, George Dicenzo, Gail Strickland, Ivor Francis and Barnard Hughes all appreared as did Jean Simmons and Stefan Gierasch from the 91 series - now it continues with the next generation.