Kos is best known for presenting the
Western Australian edition of the
Seven Network's evening current affairs program
Today Tonight from 1997 until it was axed in 2019. Kos studied at
Loreto Nedlands and
John XXIII College and is a graduate of the
Western Australian Academy of Performing Arts. In August 2020, Kos was made redundant by
Network 10. She presented her final Perth-based
10 News First bulletin on 11 September, after which production of the state-based Perth bulletin moved to Sydney. On 2 December 2020, it was announced that Kos would be joining
Nine News Perth to front a new live and local one-hour bulletin at 5pm, commencing Monday, 7 December. ==Personal life==