Home People Kat Stewart Kat Stewart shows Kat Stewart shows Kat Stewart TV Shows (12) Everyone's a Critic (2018) As Herself - Narrator (voice), She was 45 years old No Activity (2015) As Tanya, She was 42 years old Mr & Mrs Murder (2013) As Nicola Buchanan, She was 40 years old Miss Fisher's Murder Mysteries (2012) She was 39 years old Offspring (2010) As Billie Proudman, She was 37 years old Tangle (2009) As Nat Manning, She was 36 years old 30 Seconds (2009) As Marion West, She was 36 years old Talkin' 'Bout Your Generation (2009) She was 36 years old Newstopia (2009) She was 36 years old Underbelly (2008) As Roberta Williams, She was 35 years old Supernova (2005) She was 32 years old Blue Heelers (1994) She was 21 years old