[20] In 2017 Everybody Loves Lucy embarked on a regional Australian tour with Jayde Westaby in the role of Miss Ball as McCann was performing around the country in Matilda the Musical.

[22][23] Alongside McCann, the adult principal cast included Marika Aubrey and Daniel Frederiksen as Mr. and Mrs. Wormwood, and James Millar as Miss Trunchbull.

[6] McCann appeared in two stage readings for Neglected Musicals: On the Twentieth Century[28] in March 2012 and as Sydney Carlton in It's A Bird, It's A Plane, It's Superman[29] in October 2014.

In 2019 McCann headlined The Ensemble Theatre company's 2019 season in the role of Cathy Hiatt in the Jason Robert Brown cult musical The Last Five Years.

Prior to the outbreak of the COVID-19 pandemic McCann was announced to appear as Mary Flynn in Merrily We Roll Along at the Hayes Theatre[31] and as Miss Hedge in the Australian Premiere of Everybody's Talking About Jamie[32] opening at the Sydney Opera House in July 2020.

McCann was cast as Rita Hanson opposite Andy Karl in the Australian production of Groundhog Day, which premiered in Melbourne in January 2024 at the Princess Theatre.

Directed by Hayley McFarlane, McCann played the eldest of the three sisters alongside Australian actors Melina Vidler and Sara West.

McCann sang the Australian National Anthem at the Women's Rugby union Australia vs. New Zealand Bledisloe Cup Match on 18 August 2018 at ANZ Stadium Sydney.

[45] In June 2018 McCann joined the West End company of Beyond the Barricade in a national Australian tour of the UK's popular Musical Theatre concert.

McCann joined three past principal performers from London's longest-running musical Les Misérables, in the West End and on UK tour – Andy Reiss, David Fawcett and Poppy Tierney.

[49] The concert was written by Everybody Loves Lucy writing duo, McCann and Richard Carroll, and features Musical Arrangements by Stephen Amos, with direction by Sheridan Harbridge and Ben Gerrard.

[50] The world premiere Adelaide concert was Musically Directed by Michael Tyack and performed with a 9 piece orchestra made up of strings, piano, celeste and tuned percussion.

It features the nine piece orchestra arrangements of the numbers from the concert, and the physical edition of the album contains two bonus tracks – original compositions of 'Little Red Riding Hood & The Wolf' and 'The Three Little Pigs' from Dahl's Revolting Rhymes.

To date she has produced multiple seasons of the one man play I Am My Own Wife by Doug Wright starring Ben Gerrard and directed by Shaun Rennie.