
Geoffrey Castles
he/him
Also plays: Keyboard
23 years of professional experience
At a glance
About
Geoffrey’s credits as Musical Director/Conductor include the Australian Premieres of Waitress (Crossroads Live), Aladdin (Disney Theatrical) and The Bridges of Madison County (Neil Gooding Productions/Matthew Management/Hayes Theatre). Other productions include the 2024 Australasian tour of Miss Saigon (CML/GWB), the 2022/2023 Australian tour of Mary Poppins (MCG/CML), the 25th Anniversary production of Les Misérables (CML/MCG), Aspects Of Love (Hayes Theatre/Walk This Way Productions), Songs For A New World (Blue Saint Productions/Chapel Off Chapel), On The Town (VCA), Little Women (Federation University), the Auckland season of Mary Poppins (Disney/CML, and Hello Again (Gaiety/Darlinghurst Theatre). As Associate/Assistant Musical Director for Les Misérables The Arena Spectacular World Tour (CLM/Nick Grace), Sweeney Todd (Life Like Co.), Wicked (GFO/Universal), Dirty Rotten Scoundrels (James Anthony Productions), Mary Poppins (Disney/CML), Disney’s High School Musical (Jacobsen/RUG) and Guys And Dolls (Donmar Warehouse/Ambassador). Concert credits include Cowboy Bebop In Concert (Symphonic Cinema), Diamonds Are For Trevor (Trevor Ashley/Arts Centre Melbourne/MidSumma) and guest conductor with the Darwin Symphony Orchestra and the Canberra Symphony Orchestra. Geoffrey was the Associate Musical Supervisor for the 2021 Korean language production of Wicked (S&Co). He has musically directed and arranged for numerous corporate events and concerts and given his time to charity events including Light The Night, Twisted Broadway, Hats Off, World AIDS Day and The Rob Guest Endowment. Geoffrey has also written arrangements for events including Carols By Candlelight and The Helpmann Awards and he has collaborated with artists including Andréa Burns, Joshua Henry, Hayden Tee, Marika Aubrey, Simon Gleeson, Toni Lamond, Avigail Herman, Rob Mills, Trevor Ashley, Lucy Durack, David Harris, Virginia Gay and David Campbell. Geoffrey was the Musical Director for The Sydney Cabaret Showcase in 2005, 2007 and 2009. As a pianist he regularly plays with the Aussie Pops Orchestra and has played on productions including Les Misérables Arena Spectacular (World Tour) (CML/Nick Grace), Tina: The Tina Turner Musical (TEG Dainty), Frozen (Disney), Ragtime (The Production Company), Charlie And The Chocolate Factory (GFO), Muriel’s Wedding (Sydney Theatre Company/Global Creatures), A Chorus Line (TML Enterprises), Into The Woods (ANZ/Rob Guest Endowment), Mamma Mia (Louise Withers), Pippin (Kookaburra), Spring Awakening (Sydney Theatre Company), Priscilla Queen Of The Desert – The Musical (GFO/Back Row Productions) and Altar Boyz (Ovations Live). Geoffrey held the position of Assistant Conductor with the Sydney Conservatorium Choir for their concerts of Orff’s Carmina Burana and Haydn’s The Creation. Geoffrey is passionate about education and has facilitated numerous masterclasses and panels. He has been employed by VCA, NIDA and the NSW Department of Education (The Arts Unit) and is in demand as a vocal coach specialising in repertoire and audition technique. Geoffrey’s television and radio work includes recordings for ABC National Radio, appearances on Mornings with Kerri-Anne, Sunrise and The Morning Show, and a member of the Australian Idol choir for two Grand Finals. He can also be found on iTunes. Geoffrey holds a Bachelor of Music (Performance/Music Education) from the Sydney Conservatorium of Music, an AMusA in piano from the AMEB and was awarded the 2002 Young Citizen of the Year for Willoughby City Council. He is currently studying for a Master of Fine Arts in Music Theatre through the Victorian College of the Arts.
Gallery
Credits
Musical Theatre
| Year | Role | Production | Company | Manager / Supervisor |
|---|---|---|---|---|
| 2026 | Musical Director | Waitress | Crossroads Live | — |
| 2026 | Associate Musical Director / Keyboard 1 | Les Misérables World Tour (The Areana Spectacular) | CML/Nick Grace | — |
| 2025 | Children's Casting MD / Rehearsal Staff / Keys 1 Dep / Emergency Conductor | Les Misérables World Tour (The Areana Spectacular) | CML/Nick Grace | — |
| 2024 | Musical Director | Miss Saigon | GWB/CML | — |
| 2022-2023 | Musical Director | Mary Poppins | MCG/CML/Disney | — |
| 2021 | Associate Musical Supervisor | Wicked | S&CO | — |
| 2020 | Musical Director / New Orchestrations | The Bridges of Madison County | Hayes Theatre/Matthew Management/Neil Gooding | — |
| 2019 | Associate Musical Director / Keyboard | Sweeney Todd | Life Like Co. | — |
| 2018 | Musical Director / New Orchestrations | Aspects of Love | Hayes Theatre/Walk This Way Productions | — |
| 2016-2018 | Musical Director | Aladdin | Disney Theatrical | — |
| 2016 | Musical Director | Songs For A New World | Chapel Off Chapel/Blue Saint Productions | — |
| 2016 | Musical Director (Casting) | Mary Poppins | CMl/KCMI | — |
| 2014-2016 | Musical Director | Les Misérables | MCG/CML | — |
| 2013 | Associate Musical Director / Keys 2 | Dirty Rotten Scoundrels | James Anthony Productions | — |
| 2012 | Musical Director | Mary Poppins | Disney/CML | — |
| 2011-2012 | Associate Musical Director / Keys 1 & 2 | Mary Poppins | Disney/CML | — |
| 2011 | Associate Musical Director / Keys 2 | Wicked | GFO/Universal | — |
| 2010 | Assistant Musical Director / Piano | Into The Woods | ANZ/Rob Guest Endowment/GFO | — |
| 2009 | Assistant Musical Director / Piano | Guys & Dolls | Ambassador Theatre Group | — |
| 2008 | Assistant Musical Director / Keys 2 | High School Musical | Jacobsen/RUG | — |
| 2008 | Musical Director / New Orchestrations | Hello Again | Gaiety/Darlinghurst Theatre | — |
| 2024-2025 | Keyboard 1 Dep / Emergency Conductor | Tina: The Tina Turner Musical | TEG Dainty | — |
| 2023 | Keyboard 3 Dep | Mamma Mia | Louise Withers | — |
| 2021 | Keyboard 1 Dep | Frozen | Disney Theatrical | — |
| 2019 | Keyboard 2 / Rehearsal Pianist | Ragtime | The Production Company | — |
| 2019 | Keyboard 3 Dep | Charliey And The Chocolate Factory | GFO | — |
| 2019 | Keyboard 2 Dep | Muriel's Wedding | Global Creatures/STC | — |
| 2012 | Keyboard 2 | A Chorus Line | TML Enterprises | — |
| 2010 | Rehearsal Pianist / Deputy Conductor | Spring Awakening | STC | — |
| 2009 | Keyboard 2 Dep / Emergency Conductor | Mamma Mia | Louise Withers | — |
| 2009-2010 | Keyboard 1 and 2 Dep | Wicked | GFO/Universal | — |
| 2008 | Keyboard 2 | Altar Boyz | Ovations Live | — |
| 2007 | Keyboard 2 Dep | Priscilla, Queen of the Desert: The Musical | GFO/Back Row | — |
| 2007 | Rehearsal Pianist | Fiddler On The Roof | TML Enterprises | — |
| 2003 | Rehearsal Pianist | The Harp On The Willow | Ensemble Theatre | — |
| 2007 | Keyboard 2 | Pippin | Kookaburra | — |
Waitress
2026Musical Director
Crossroads Live
Les Misérables World Tour (The Areana Spectacular)
2026Associate Musical Director / Keyboard 1
CML/Nick Grace
Les Misérables World Tour (The Areana Spectacular)
2025Children's Casting MD / Rehearsal Staff / Keys 1 Dep / Emergency Conductor
CML/Nick Grace
Miss Saigon
2024Musical Director
GWB/CML
Mary Poppins
2022-2023Musical Director
MCG/CML/Disney
Wicked
2021Associate Musical Supervisor
S&CO
The Bridges of Madison County
2020Musical Director / New Orchestrations
Hayes Theatre/Matthew Management/Neil Gooding
Sweeney Todd
2019Associate Musical Director / Keyboard
Life Like Co.
Aspects of Love
2018Musical Director / New Orchestrations
Hayes Theatre/Walk This Way Productions
Aladdin
2016-2018Musical Director
Disney Theatrical
Songs For A New World
2016Musical Director
Chapel Off Chapel/Blue Saint Productions
Mary Poppins
2016Musical Director (Casting)
CMl/KCMI
Les Misérables
2014-2016Musical Director
MCG/CML
Dirty Rotten Scoundrels
2013Associate Musical Director / Keys 2
James Anthony Productions
Mary Poppins
2012Musical Director
Disney/CML
Mary Poppins
2011-2012Associate Musical Director / Keys 1 & 2
Disney/CML
Wicked
2011Associate Musical Director / Keys 2
GFO/Universal
Into The Woods
2010Assistant Musical Director / Piano
ANZ/Rob Guest Endowment/GFO
Guys & Dolls
2009Assistant Musical Director / Piano
Ambassador Theatre Group
High School Musical
2008Assistant Musical Director / Keys 2
Jacobsen/RUG
Hello Again
2008Musical Director / New Orchestrations
Gaiety/Darlinghurst Theatre
Tina: The Tina Turner Musical
2024-2025Keyboard 1 Dep / Emergency Conductor
TEG Dainty
Mamma Mia
2023Keyboard 3 Dep
Louise Withers
Frozen
2021Keyboard 1 Dep
Disney Theatrical
Ragtime
2019Keyboard 2 / Rehearsal Pianist
The Production Company
Charliey And The Chocolate Factory
2019Keyboard 3 Dep
GFO
Muriel's Wedding
2019Keyboard 2 Dep
Global Creatures/STC
A Chorus Line
2012Keyboard 2
TML Enterprises
Spring Awakening
2010Rehearsal Pianist / Deputy Conductor
STC
Mamma Mia
2009Keyboard 2 Dep / Emergency Conductor
Louise Withers
Wicked
2009-2010Keyboard 1 and 2 Dep
GFO/Universal
Altar Boyz
2008Keyboard 2
Ovations Live
Priscilla, Queen of the Desert: The Musical
2007Keyboard 2 Dep
GFO/Back Row
Fiddler On The Roof
2007Rehearsal Pianist
TML Enterprises
The Harp On The Willow
2003Rehearsal Pianist
Ensemble Theatre
Pippin
2007Keyboard 2
Kookaburra
Other
| Year | Role | Production | Company | Manager / Supervisor |
|---|---|---|---|---|
| 2025 | Piano | New Years Eve Gala with Marina Prior, Simon Glesson and Lucy Durack | John Foreman and The Aussie Pops | — |
| 2025 | Piano | Idols of Musical Theatre with Paulini, Rob Mills and Casey Donovan | John Foreman and The Aussie Pops | — |
| 2025 | Piano | The Great Christmas Sing-A-Long with Silvie Paladino | John Foreman and The Aussie Pops | — |
| 2025 | Conductor | Cowboy Bebop in Concert | Symphonic Cinema | — |
| 2019 | Conductor | Shell Prom | Canberra Symphony Orchestra | — |
| 2019 | Keyboard | Lea Salonga in Concert | — | — |
| 2019 | Rehearsal Conductor | Hans Zimmer Live | — | — |
| 2014 | Musical Director/Conductor | Diamonds Are For Trevor | Arts Centre Melbourne/MidSumma/Trevor Ashley | — |
| 2013 | Conductor | Diamonds Are For Trevor | Darwin Symphony Orchestra | — |
New Years Eve Gala with Marina Prior, Simon Glesson and Lucy Durack
2025Piano
John Foreman and The Aussie Pops
Idols of Musical Theatre with Paulini, Rob Mills and Casey Donovan
2025Piano
John Foreman and The Aussie Pops
The Great Christmas Sing-A-Long with Silvie Paladino
2025Piano
John Foreman and The Aussie Pops
Cowboy Bebop in Concert
2025Conductor
Symphonic Cinema
Shell Prom
2019Conductor
Canberra Symphony Orchestra
Lea Salonga in Concert
2019Keyboard
Hans Zimmer Live
2019Rehearsal Conductor
Diamonds Are For Trevor
2014Musical Director/Conductor
Arts Centre Melbourne/MidSumma/Trevor Ashley
Diamonds Are For Trevor
2013Conductor
Darwin Symphony Orchestra