Sydney Senior Leaders & Property Board
The Star Sydney Senior Leadership Team
John Koster
Chief Executive Officer, The Star Sydney
John is an accomplished casino and hotel executive with over 40 years’ experience. With nearly 30 years in senior leadership across multiple US states including Internationally recognised casino resorts and hotels including Caesars, Eldorado, and Harrah’s, his most recent role was serving as Regional President: Caesars East which included overall leadership of three iconic Atlantic City casino and hotel properties. He was appointed CEO of The Star Sydney on 2 March 2026 pending regulatory approvals. Having worked in five countries, John has diversified cultural exposure and strong leadership skills, with extensive experience in hotel and casino organisations. John holds an Executive MBA from Duke University as well as a Bachelor of Science.
Charles Chau
Director of Gaming Machine Operations
Henry Lien
General Manager, Property Risk &
Compliance
James St Clair
Chief Financial Officer – The Star Sydney
Mario Naim
Director of Hotels
Michael Houben-Le
General Manager, Cashier Services
Mika Bovan
Acting General Manager, Gaming Guest
Development & Experience
Rob Courtney
Director of F&B Operations
Scott Ballesty
Acting General Manager, Table Games
Steve Murray
General Manager, Asset Protection
Tim Banning
General Manager, People & Culture
The Star Sydney Property Board
Bruce Mathieson Jr
Group Chief Executive Officer & Managing Director (TSEG)
With over 30 years of experience in the hotel, hospitality and gaming industries, Bruce commenced as an Observer on The Star Board on 1 September 2025. He is currently Director and CEO of Bruce Mathieson Group and a Director of Ord Minnett Investment Limited. Mr Mathieson is a former non-executive director of ASX listed Endeavour Group Limited and also, among other roles, was the CEO of ALH Group for over 11 years, during which he led the successful merger with Endeavour Drinks to form Endeavour Group in 2019 and the demerger of Endeavour Group and Woolworths in 2021. He has a Bachelor of Commerce, from Bond University.
John Koster
Chief Executive Officer, The Star Sydney
John is an accomplished casino and hotel executive with over 40 years’ experience. With nearly 30 years in senior leadership across multiple US states including Internationally recognised casino resorts and hotels including Caesars, Eldorado, and Harrah’s, his most recent role was serving as Regional President: Caesars East which included overall leadership of three iconic Atlantic City casino and hotel properties. He was appointed CEO of The Star Sydney on 2 March 2026 pending regulatory approvals. Having worked in five countries, John has diversified cultural exposure and strong leadership skills, with extensive experience in hotel and casino organisations. John holds an Executive MBA from Duke University as well as a Bachelor of Science.
Helen Galloway
Chair, The Star Sydney
Helen Galloway (FCPA, FAICD) is a business leader with core skills in Strategy, Finance, Information Systems and Analytics. An experienced governance professional, she is currently Chair of an APRA regulated Authorised Deposit Institution (ADI), and believes good governance arises from continual focus on board culture and quality information to the Board. Her board room experience involves highly regulated industries, consumer facing businesses, Government board roles, compliance and significant projects. Helen has breadth across multiple industries including Retail Banking, Gaming, Energy, Hospitality, Sport, and Tourism along with breadth across segments of listed, Government, Not for Profit & Member owned organisations.
Heather Scheibenstock
Board Member, The Star Sydney
Heather Scheibenstock is a prominent board member with extensive experience in corporate leadership, particularly in the gaming and hospitality industries. With over 35 years of experience, she has held various leadership roles, including being a member of the Audit and Risk Committee at SenSen Networks Ltd. and has a strong background in strategic planning and business development.
Andrew Joliffe
Board Member, The Star Sydney
Over the past 30 years, Andrew Jolliffe has been at the helm of some of Australia’s most high profile and high performing hospitality and gaming indexed property businesses. During this time, Andrew occupied numerous Senior Executive roles, including General Manager of the successful Palace Leisure Group (PLG), Managing Director of Grant Samuel Private Equity Hospitality Fund and Chief Executive Officer and Managing Director of ASX listed hotel and gaming company National, Leisure and Gaming Limited.