
Acting
Siobhán Kate Cullen is an Irish actress. She began her career as a child actress, making her debut in Marina Carr's By the Bog of Cats (1998) at the Abbey Theatre. She landed her first major screen role in Eoin Macken's horror film The Inside (2012).
Cullen had roles in the RTÉ1 and BBC One miniseries Paula (2017), the ITV adaptation of The Long Call (2021), the BritBox series The Dry (2022–2024), the RTÉ series Obituary (2023–), and the Netflix series Bodkin (2024). She was named a 2022 Screen International Star of Tomorrow.

National Theatre Live: Straight Line Crazy
as Finnuala Connell

The Bright Side
as Tracy

The Cherry Orchard
as Varya

The Limehouse Golem
as Sister Mary

The Randomer
as Roberta

Jimi: All Is by My Side
as Jenny

The Inside
as Corina

The Crooked Mile
as Jenny
Highlander

Babies
as Lisa · 6 ep.

Bodkin
as Dubheasa 'Dove' Maloney · 7 ep.

Obituary
as Elvira Clancy · 12 ep.

The Dry
as Caroline Sheridan · 24 ep.

Dalgliesh
as Josephine Fallon · 2 ep.

The Long Call
as Caroline Reasley · 4 ep.

Origin
as Katie Devlin · 10 ep.

Paula
as Morgan · 3 ep.

The Clinic
as Kristen · 3 ep.