Alice, Small Alice and Tall Alice are differently sized versions of the show's titular inquisitive and intrepid young girl. On a journey of self-discovery,  the adventurous Alice has the heart of an explorer and instincts of a leader. Even when frustrated or confused, she's awfully charming, so cast an actor who can command the stage. Of the three,  Alice carries the heft of the singing solors, so be sure to cast a strong singer for this starring role. Small Alice participates in a few musical numbers that might require good movement and dance skills. Tall Alices appears for a few cameo-style moments. While there are ways to adjust heights of the actors through creative costuming, keeping heights of the actors through creative costuming, keeping track of the actors heights in auditions can help simplify the design of your production.