Who changes their surname to that of their stepfather?
Gerald Ford and Bill Clinton both did just that.

Uninformed judgement is a dangerous thing. As the other gentleman pointed out, actors change their last name quite often for a number of reasons. If you think hers is cynical or opportunistic, ok. I see as much fault in your criticism as I do in her decision. However,
Her decision did not include passing judgement on another person's character, so you appear to be the one at fault.

She is still a terrible actress, whomever her father was

Apparently she took her stepfather's name after people thought she was Dutch at auditions

actors. they do it all the time.
Plot hole - Aspect of a film that is misunderstood or missed while using your smart phone.

Why would her being Dutch be a problem? Doesn't she have an English accent?

People thought she was Dutch at auditions, that's why she uses her stepfather's name. That's how you answer a Q - not all "who the frack cares" defensive mate!

Nope, she2000's in the public eye so of course people would be curious about that. You're very defensivebut then you're personally connected aren't you.
Step fathers name instead of your real father.oh never mind I see why! OK, let's call it opportunistic

Who the frack cares? That's a petty thing to point out.
MrsPrimitiveBoomstick's bit of stuff

Couldn't agree with you more.
To add extra hilarity, Rylance isn't even her step father's real name.

I was wondering what the Rylance connection was I was thinking maybe she was his wife? Thanks for clearing that up! And I wouldn't call it so much cynical as perhaps opportunistic especially if she changed her name as an adult.
I should warn you he's a Fourierist.