Editing Sigrid Thornton (section)

===Stage highlights===
Thornton's stage performances include a 2002/03 touring production of ''[[The Blue Room (play)|The Blue Room]]'' directed by [[Simon Phillips (director)|Simon Phillips]] for the [[Melbourne Theatre Company]] opposite [[Marcus Graham]].<ref>[http://www.theage.com.au/articles/2003/01/15/1042520676162.html "Thornton, Graham red hot in the Blue Room"] by Helen Thomson, ''[[The Age]]'', 16 January 2003</ref> In 2009 she made her debut with [[Opera Australia]] in its production at Melbourne's [[The Arts Centre (Melbourne)|Arts Centre]] as Desiree Armfeldt in [[Stephen Sondheim|Sondheim]] and [[Hugh Wheeler|Wheeler]]'s ''[[A Little Night Music]]'', directed by [[Stuart Maunder]].<ref>[http://www.opera-australia.org.au/scripts/nc.dll?OPRA:PRODUCTION:0:pc=PC_90107 ''A Little Night Music''] {{webarchive|url=https://web.archive.org/web/20120303061205/http://www.opera-australia.org.au/scripts/nc.dll?OPRA:PRODUCTION:0:pc=PC_90107 |date=3 March 2012 }}, [[Opera Australia]]</ref>

In 2014, she won critical acclaim for her portrayal of [[Blanche DuBois]] in [[Tennessee Williams]]' play ''[[A Streetcar Named Desire]]'' for the [[Black Swan State Theatre Company]] in Perth.<ref>[http://www.perthnow.com.au/entertainment/sigrid-thornton-shines-as-blanche-dubois-in-a-streetcar-named-desire/story-fnhocr83-1226860573388 "Sigrid Thornton shines as Blanche Dubois in ''A Streetcar Named Desire''"] by Jay Hanna, ''[[Perth Now]]'', 20 March 2014</ref>

In 2015, she appeared in the premiere of Stephen Beckett's play ''Diary of a Nobody'', inspired by the 1892 novel ''[[The Diary of a Nobody]]'', at the [[Princess Theatre, Launceston]], Tasmania.<ref>[https://allevents.in/launceston/sigrid-thornton-in-diary-of-a-nobody/1624503307788868# "Event Details: Sigrid Thornton in ''Diary of a Nobody''"]</ref> The same year, Thornton played the part of Golde in ''[[Fiddler on the Roof]]'' at the [[Princess Theatre, Melbourne]].<ref>{{cite news|url=http://www.heraldsun.com.au/entertainment/arts/anthony-warlow-returns-to-australian-stage-for-fiddler-on-the-roof/news-story/8d1e3a826a1a00e2d35cb1e1b4b62e3f|title=Anthony Warlow returns to Australian stage for ''Fiddler on the Roof''|work=[[Herald Sun]]|date=13 September 2015}}</ref>

As of September 2022 Sigrid made her stage debut for the [[Sydney Theatre Company]] in the premiere stage play ''[[The Lifespan of a Fact]]'' to rave reviews and in 2023 returns to the stage for [[Anton Chekhov|Anton Chekhov's]] ''[[The Seagull]]'' for the [[Sydney Theatre Company]].

On 11 September 2024, Thornton was named for the 2025 season for the Melbourne Theatre Co play ''Mother Play.''<ref>{{Cite web |last=Woodhead |first=Cameron |date=2024-09-11 |title=An unflinching footy play is coming back. And so is a David Williamson classic |url=https://www.theage.com.au/culture/theatre/an-unflinching-footy-play-is-coming-back-and-so-is-a-david-williamson-classic-20240909-p5k95a.html |access-date=2024-09-11 |website=The Age |language=en}}</ref>