[3] In 2001 she collaborated with her sister Fiona O'Loughlin on the stage show Fiona, Her Sister and Some Guy, which they performed first at Warooka, then in Alice Springs, then at the Melbourne Comedy Festival,[1] where it received the Best Newcomer Award at the Melbourne International Comedy Festival.
InDaily reviewer Murray Bramwell wrote "Taheny is excellent as Anna, the most closely detailed character in the play".
[7] Catherine Campbell, writing in The Conversation, called the play "a future Australian classic – a Housework is a future Australian classic – a Don's Party for our time", and wrote "Taheny effortlessly makes the whip-smart staffer Anna multifaceted, with internal conflict alongside high-energy pragmatism and expertly timed comedy".
In 2006, she appeared on The Chaser's War on Everything, singing a song alongside Andrew Hansen's Crazy Warehouse character.
[10] From 2012 to 2022,[citation needed] she was a regular cast member on the Australian Broadcasting Corporation's satirical news program Shaun Micallef's Mad as Hell, playing numerous recurring and one-off characters, and she competed in a special Mad As Hell does Hard Quiz in 2022.