What's the process to change my name to a stage name? Once it's changed does this only apply to future credits or also the ones in the past? And once it's changed is there any indication of the previous name?
D2, If you go to your page and then to the bottom you'll find an edit page button. Click this and you have a range of categories of data you can update or change - top of the list is name correction. Select to change this and proceed through the steps - it is quite easy, but if you post details here I am also very happy to do it for you.
Regarding the former name....if you do it correctly you will have ticked the box to retain existing name appearance - so all the credits you appeared on screen as your former name will now have (as old name) next to them.....this keeps the connection and stops someone thinking your old name is a different person.
How future credits appear depend on how you are credited on the screen, but changing your name on IMDb will apply to the top of the name page, so yes i guess by default it will apply to all future credits.
bob note: I am not an IMDb employee, nor in any way affiliated with IMDb