[2] Paetz began her career as a child actress when she appeared in the 2005 CTV Network television film Selling Innocence as Stephanie Walker.
[3] After graduating from drama school, Paetz made her professional London stage debut in 2017 when she starred in You're Human Like the Rest of Them at the Finborough Theatre[4] and opposite Ruth Gemmell in No Place for a Woman at Theatre 503.
[5] She returned to television in 2018 with guest appearances in the Hulu and BBC One series The Looming Tower and Press respectively, and voiced Grace in the film Juliet, Naked.
[6] In 2019, Paetz had a recurring role as Catherine Rawson in the first series of the BBC One historical drama Gentleman Jack[7] and began starring as Martha Kane (later Wayne), Batman's mother, in the DC Universe series Pennyworth on Epix.
[11] In the meantime, Paetz appeared in 8 Hotel with Ben Cura and the Minerva Theatre[12] as well as the 2020 Irish vampire comedy film Boys from County Hell.