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Biography

Rose Kathryn Decker (born September 30, 2015) is an American child actress and model. She is best known for work on HBO's limited series Mare of Easttown (2021) and Nikyatu Jusu's Sundance-winning film Nanny (2022)

Known For

0.0

Young Heather

Kidnapped by a Killer: The Heather Robinson Story

2025

6.0

Child

Audrey's Children

2025

5.3

Rose

Nanny

2022

8.2

Kenzie

Mare of Easttown

2021

7.6

Bat Girl

Servant

2019

7.8

Toddler (uncredited)

Evil

2019

7.9

Ella Blake

FBI

2018

7.6

Lily Dawson

The Blacklist

2013

Credits

Kidnapped by a Killer: The Heather Robinson Story

as Young Heather

2025

0.0

Audrey's Children

as Child

2025

6.0

Nanny

as Rose

2022

5.3

Mare of Easttown

as Kenzie

2021

8.2

Servant

as Bat Girl

2019

7.6

Evil

as Toddler (uncredited)

2019

7.8

FBI

as Ella Blake

2018

7.9

The Blacklist

as Lily Dawson

2013

7.6