Theatre Mamusidom

Blue Mountains Theatre

upcoming event

The Picasso Affair




or at the door if seats available

The Picasso Affair

"The Picasso Affair" written by the multi-talented John Shand, Katoomba resident, long time music and theatre critic for SMH, muso and celebrated playwright, is a fast paced comedy  in the course of which a couple's hidden secrets are revealed, initiated by a surveillance car sitting outside their house.   Location: The Fairmont Resort and Spa, Leura, 

Dates: Saturday 24 April to Wednesday 28 April

Times: 7.30pm on Saturday, Monday, Tuesday, Wednesday, 5pm on Sunday

Director Nigel Glassey, actors Marty O’Neill, Liz de Koster and Richard Affleck, Lighting / Sound Director David Cowie & Stage Manager Ria Koppen and  will make this a memorable experience.

Tickets (fully refundable if cancellation of a performance necessary, eg COVID changes) via are $30 and $25 for all performances and also at the door on the night if space is available.

Enquiries Liz on 0477827752

about us

about us 


Located in the upper Blue Mountains in 2021,  Theatre Mamusidom is a newly formed vibrant company established by Liz de Koster, widow of the late and well-known local artist, Jose de Koster whose autobiography, "Fragments of a Journey, A Fistful of Life" Liz edited and published, extracts from which can be seen on

After an absence from the stage for several years owing to caring for her husband in his final years, Liz has eagerly resumed  her former acting and directing skills with the formation of Theatre Mamusidom . The aim of the company is to produce excellence in theatre in a wide spectrum of drama - from tradition to innovative, by playwrights, past and present from within Australia and abroad.

Liz explains “there is so much acting talent in the Blue Mountains and room for a companion to the Blackheath Theatre Company, of which I am an enthusiastic member and currently oversee the Local Script Development Program.”

Puzzled by the name Mamusidom?  Liz explains “my parents were Polish and it means  "Mother Home”.

drawing by John Ellison

expressions of interest

We invite people who wish to be involved or with the  growth of Theatre Mamusidom - whether as actor, director, lighting/sound designer, front-of house volunteer, financial sponsor - to contact us via the contact page, or email or ring.


watch this space for future events