Kat Stewart: Biography, Age, Children, TV Shows & Facts

There’s a certain thrill in watching an actor who can vanish into a character so completely you forget their name. Kat Stewart has done that across Australian television for over two decades, from the gangster’s wife in Underbelly to the frazzled sister in Offspring.

Full name: Katherine Louise Stewart ·
Born: 30 November 1972 ·
Profession: Actress, producer ·
Notable TV credits: Offspring, Five Bedrooms, Underbelly

Quick snapshot

1Confirmed facts

Born 30 November 1972 in Bairnsdale, Victoria (Wikipedia (online encyclopedia))
Married to David Whiteley since February 2008 (IMDb (film database))
Studied at Monash University, graduated 1995 (Monash University (her alma mater))
Ensemble member of Red Stitch Actors Theatre since 2002 (Wikipedia (online encyclopedia))

2What’s unclear

Number of children: IMDb lists two but this count is not consistently confirmed in other sources (IMDb (film database))
No current partner name beyond David Whiteley in Wikipedia or IMDb as of 2025

3Timeline signal