Cassandra Seidemann


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“Seidemann shines as self-obsessed aristocrat with a subtle gleam of zaniness…tremendous vocal talent…” 
Stage Diary

Australian/German mezzo soprano Cassandra Seidemann has featured extensively on both stage and screen.  She is a favourite with audiences having sung throughout Australia, Asia and New Zealand.  2019/2020 highlights include Rossweisse in the Singapore premiere of Die Walküre, appearances in Opera Queensland’s productions of A Flow’ring Tree, Tosca and Orfeo and concert appearances in Ausralia, New Zealand and Papua New Guinea.

In 2017, she was soloist for Opera Under the Stars in Broome, Western Australia and in Handel’s Messiah for Christchurch City Choir; she also appeared in The Pearl Fishers and Ruddigore for Opera Queensland.  Cassandra returned to Opera Queensland in 2018 as Olga in Graeme Murphy’s new production of The Merry Widow and starred in a Chinese New Year gala concert at the Sydney Opera House. 

Cassandra graduated with honours from The University of Queensland in 2006 with a Bachelor of Music (Opera Performance).  There she performed the title role in Dido and Aeneas as well as Hansel in Hansel & Gretel.

In 2010, she  joined Opera Queensland as part of the Young Artist Program appearing as 2nd Bridesmaid in The Marriage of Figaro and understudying Hansel in Hansel and Gretel.  Her affiliation with Opera Queensland has continued to the present day performing and covering the roles of Wowkle in La fanciulla del West, Countessa Ceprano in Rigoletto, Flora in La traviata and Kate Pinkerton and Suzuki in Madama Butterfly.

Other operatic highlights include the title role in Carmen with the Sydney Philharmonia in 2012 and appearing in concert with Jeff Mills, Derrick May and the Melbourne Symphony Orchestra in early 2016.  

On screen, she has been featured in the Lord Mayor's Carols in the City, numerous television commercials, was a featured artist at the Carols in the Domain 2015 to 2017 and, most recently, played the role of Mary in the short film Jade .

Cassandra's musical theatre appearances include Pitti-Sing in The Mikado, Gwendolen Fairfax in The Importance of Being Ernest, Tessa in The Gondoliers and Laurey in Oklahoma!   On the concert stage, she has taken the alto solos in Handel’s Messiah and Dixit Dominus, Vivaldi’s Gloria, Schubert’s Mass in A Major, Bach’s Magnificat and Mozart’s Requiem and Coronation Mass

Cassandra was a grant recipient of The Joan Sutherland Society, a finalist in the Opera Foundation Australia German Opera Scholarship and a finalist in the Opera Foundation Australia Lady Fairfax Scholarship.

Representation: World

Cassandra’s Personal Site