Home People Zosia Mamet Zosia Mamet movies Zosia Mamet movies Zosia Mamet Movies (21) Last Call (2016) As Penny. She was 28 years old Under the Silver Lake (2018) As Troy. She was 30 years old The Boy Downstairs (2018) As Diana. She was 30 years old Star vs. the Forces of Evil: The Battle for Mewni (2017) As Heckapoo (voice). She was 29 years old Kate Can’t Swim (2017) As Lily. She was 28 years old Once Upon a Sesame Street Christmas (2016) She was 28 years old Goldbricks in Bloom (2016) As Cleo. She was 28 years old Wiener-Dog (2016) As Zoe. She was 28 years old Mildred and the Dying Parlor (2016) As Mildred. She was 28 years old Mildred and the Dying Parlor (2016) As Executive Producer. She was 28 years old Emily & Tim (2015) As Emily (Segment 1). She was 27 years old Bleeding Heart (2015) As Shiva. She was 27 years old Back to Backspace (2014) As Yaga (voice). She was 26 years old The Last Keepers (2013) As Rhea Carver. She was 24 years old Rhymes with Banana (2012) As Z. She was 24 years old Sunset Stories (2012) As Bethany. She was 24 years old Snuggle Bunny: Man's Most Lovable Predator (2011) As The Daughter. She was 23 years old Cherry (2010) As Darcy. She was 22 years old The Kids Are All Right (2010) As Sophia. She was 22 years old War Wolves (2009) As Rudy. She was 21 years old Parallel Lives (1994) As Shannon. She was 6 years old