When it's a real person, you want to be as honest as you can and approach it in a similar way as you would any other character, but with that restriction and wanting to respect the boundaries of that person and not be intrusive in any way.

When you're playing someone that's real, there is that hanging weight of how will they feel when they see this: will I make them feel exposed in some way, and how do I absolutely avoid doing that while playing this as accurately and empathetically as I possibly can?

If you're creating your character, you can have full ownership of the emotional range they go through. You can make bolder choices.

Lucy Boynton Quotes