Sandy Springs-based Act 3 Playhouse is holding auditions for Once on this Island, a nearly non-stop song-and-dance adaptation of the popular fairy tale, “The Little Mermaid”, set in the Caribbean. Actors, singers and dancers of all ages are needed. Those interested should e-mail their name, age, gender and availability to audition April 13-14 between 4-10 p.m. to act3productions@aol.com. Call-backs are April 16. For more information, visit www.act3productions.org.