Broadway's Tituss Burgess has also been added to the cast.
The Stuttering Association for the Young will be present works written and directed by teens who stutter.
Full casting for the festival has been revealed.
A series of new musicals will be presented in readings on October 23 and 24.
Proceeds from the event will go to Animal Haven & The Second Chance Rescue.
Check out the future of musical theater over two days.
The composer and lyricist will perform on June 16.