It can be frustrating for some audiences when actors miss matinees via their 6-performance week schedule...but for an actor, missing a matinee is usually the best choice if the role demands them rest...
They don't have to do TWO shows in one day, nor do they have to do a show in the middle of the day (which is not as popular as doing an evening show).
How to properly use its/it's:
Its is the possessive. It's is the contraction for it is...