You and some friends are trapped in a big scary mansion 

 Teacher 

A dinner with every version of yourself 

Your IQ was deemed so high by the school board that they let you skip from eighth grade straight to twelfth grade

I

Iron man vs darth Vader

The lady

Your own personal treehouse 

female zamasu

congratulations you've scrolled long enough and found the seven chaos emeralds

eda the owl lady (more info in the hidden bio)

You're welcome

you live in gotham city

odalia blight from the owl house (additional info is in the other bio)

darcy, dark possessed marcy.