Stage make up is very important when you are on the stage.  The stage lights WILL wash you out and make you look pale.  Majority of shows will usually need a general make up style that you put on.  Other shows may need some specialty effects for the character's type.  You should always make a make up plan for your character or characters in case you play multiple characters. 

What make up do I get?  Up to you.  There is stage make up kits or you can go to the store and build your own.  A good recommendation is using the Ben Nye® theatrical crème kit.   The personal kit is a common kit to get as it has the basics.  There is a larger kit if you choose too.  

The kit come with a base crème, brush, eyeliner pencil, make up sponges, small creme pallet for details, and translucent powder to conceal the make up.