Plus: Google's Wesley Chan, MIT Technology Review CEO Elizabeth Bramson-Boudreau and Intel Corporation futurist, Brian David Johnson.
CommBank, ARN, The Growth Distillery, and Suntory Minus 196 are among the brands with activations.
The convention will take place on 14-20 October.
Leading the announcement of new speakers appearing is Reed Jobs, founder of venture capital firm Yosemite.
"This year at SXSW Sydney, we challenge brands, partners, and attendees to ask themselves - what does innovation truly mean?"
"This is the first of many announcements as we roll out the extensive and diverse range of visionaries and creative thinkers from...
Cahill will continue to oversee the commercial interests of SXSW Sydney.
The inaugural year featured 1,178 sessions and events
Geoff Jones: "To say SXSW Sydney left a mark on the city in its inaugural year is an understatement."
"The balance of opportunity and risk is critical to get right"
Sally Aitken: "You can't script that kind of commitment, you can't predict that kind of passion."
"Day four at SXSW and I think we may have hit peak AI"
"Discovery can only happen looking wider than your current horizon"
"With all the music attendees arriving and the sun shining it finally felt more like a festival"
