| Leisl | Elyse McInerney |
| Freidrich | Carlin Grant |
| Louisa | Kiane O'Farrell |
| Kurt | Alexander Beckitt |
| Brigitta | Rebecca Closter |
| Marta | Ebony Puopolo |
| Gretl | Tayla Muir |
| Rolf | Blake Testro |
| Maria | Emmalee Bell |
| Mother Abbess | Amanda Warner |
| Sister Bertha | Anna Marinelli |
| Sister Margeritta | Claire Abagia |
| Sister Sophia | Laurene Coller |
| New Postulant | Lisa Nightingale |
| Captain von Trapp | Angelo de Cata |
| Franz | Bob Barrie |
| Frau Schmidt | Ang Cuy |
| Elsa Schraeder | Carolyn Hasenkan |
| Max Detweiler | Michael Blazely |
| Herr Zeller | Adam Cabai |
| Baron Elberfeld | Pat Ryan |
| Admiral von Schreider | Pat Ryan |
| Priest | Aaron Ware |
| Nuns and Ensemble | Mathew Sheahan Melanie Hansen Lauren Grieve Danny McLoone |
| Director | Paul Scott-Williams |
| Musical Director | Joseph Beckitt |
| Choreographer | Gracie Marcucci |
| Producer | Peter Goad |
| Production Assistant | Aaron Ware |
| Stage Manager | Michael Slee |
| Assistant Stage Manager | Erin Wilson |
| Crew | Members of ACT |
| Costumes | Robyn Wright |
| Wardrobe Mistress | Lisa Burgemeister |
| Set Design & Construction | Rick Howden |
| Set Graphic Artist | Brad Picken |
| Scenic Art | Declan O'Farrell Caroline Winiczenko Pat Ryan |
| Props | Glenda Pascoe |
| Lighting Design | Paul Lim |
| Lighting Operation | James Morgan |
| Spot Operators | Dale Robinson Daniel Holc Stacey-Louise Cordina |
| Sound Design & Operation | James Holt |
| Microphone Fitter | Tim Goad |
| Tickets | Adrienne Williamson |
| Flute 1 | Leisl Richter |
| Flute 2 | Kelly Williams |
| Oboe | Andrea Soyer |
| Clarinet 1 | Dean Hayhow |
| Clarinet 2 | Bethany Rhook |
| Trumpet 1 | Bryan Chetcuti |
| Trumpet 2 | Naomi Cordell |
| Horn | Kristie Baker |
| Trombone 1 | Tom Ryan |
| Trombone 2 | Lisa Watson |
| Percussion | Laura Holian |
| Harp | Joseph Beckitt |
| Guitar | Richard Bray |
| Violin 1 | Bernadette Mak Wilhelm Hollenbach |
| Violin 2 | Kathryn O'Brien Sarah Busuttil |
| Cello | Chris Howlett |
| Bass | Adrian Close |
