What is the name of the actress in Van Helsing?
Anna is played by Kate Beckinsale.
When Van Helsing is in his Werewolf form, Anna has the antidote and runs at him to inject it into him, which is when Van Helsing also runs at her and she hits her head on a chair. Van Helsing then turns back into a human and he has realised he has killed Anna. So by her saving him, he killed her by an accident.