There aren’t certain facial expressions required for any type of acting.
Voice acting is acting. It involves a lot more then an interesting voice. You’re creating a character, expressing an emotion, and telling a story. That means incorporating facial expressions and physicality is important. It lets you become the character more completely and makes the performance more believable. People want to be able want to hear your smile or feel your tension.
And in some cases animators when they create the animation.will be inspired by the expressions and physicality of voice actors.
So you don’t have specific expressions that you have to use when you say specific lines. But facial expression and physically are part of voice acting. The tone, volume, inflection, cadence, and emphasis of your voice changes based on your facial expression and physical movements. Standing still with your hands in your pockets won’t cut it.