Born in the North Island of New Zealand Theaker von Ziarno entered the world of 'performance' in 1990 by suspending her body -in relation to architecture for hours at a time. She called it installation art, others called it performance. Thus finding the performance in art she continued to produce and direct performances in industrial wastelands -away from white box galleries, and black box theaters. This evolved into 'Vane Heart Artery' an installation and performance art aggregate, which utilised industrial wastelands as sites for hit and miss- promenade performance events.

Theaker finished a bachelor of fine arts with distinctions in1991 Queensland Australia. She then staged several solo exhibitions that featured installation, performance, sculpture, painting and multimedia. The topic of research for her master's degree was titled 'The severance of Art and Life' which identified art as a creative necessity for social and individual well-being. This led her into the world of festival.

After the birth of her son Mason in 1995 she committed to a course in 'rigging' and started training as an aerialist. This was Theaker's first introduction to performance as entertainment. It quickly became a passion over taking her life as an academic artist.

Loving how accessible circus art was to a great cross section of people- Theaker promptly identified street performance as an important and effect means of engaging an incidental audience- of re inventing common and every day places to make magic on the street.

A professional trapeze artist who has performed at special events in Hong Kong, Singapore, Poland, Switzerland and Australia Theaker has performed her solo streets shows, Arty Ms and Supa Nova! In Croatia, Italy, Brazil, New Zealand, Austria, Germany, The Netherlands, The UK and off course throughout Australia.

Theaker has devised, directed and performed in street theater projects since 1997- is Based in Fremantle Western Australia and contracts with troupes -Bizircus, Mantis Aerial Fire, E ol and various National and International Festivals as a solo performer.

She teaches at the West Australian circus school Cirque Bizirque of which she was the second founding member, has been artistic director of the 2001 Artrage Festival 'Ether', directed and coordinated the Esperance Festival of the Wind 2000 finale ' The Great Esperance Odyssey' which transverse 3 kilometers of the southern coast line and featured 200 locals in an epic promenade performance; been an integral part of the youth arts festival in the isolated north west of Australia, 'Deadly Fusion' 1999 &2000, and Awesome International Children's Festival.

In 2003 Theaker trained Aerial with Circo Picolino in Salvador Brazil and also trained as a stilt walker in Paris with Friches Theater Urbane.

Theaker has developed two solo shows, which feature a freestanding trapeze rig: Arty Ms and Supa Nova. She has her advanced riggers ticket and finds industrial rigging contracts a healthy contrast to the showgirl, the artist and the mother. Theaker runs a studio residency and training space called 'the well', which she extends to her community as a place of creative development.