Rebecca O'Mara

Actress

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Rebecca O'Mara

Actress

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Credits
29 titles

Television in Production (1 title)	Episodes	Status
Hidden Assets (2021– ) (TV Series) - Alice Heaslip (1 episode) Alice Heaslip (1 episode) See fewer — Episode #3.1 Season 3, Episode 1 - Alice Heaslip Alice Heaslip See fewer	1

Past Film & Video (15 titles)	Budget	Opening Weekend	Gross (US & Canada)	Gross (Worldwide)
Anniversary (2025) Enumerator Enumerator See fewer
Morning After (2024) (Short) - Carmel Carmel See fewer	€10K
Beetlejuice Beetlejuice (2024) Jody Welch Jody Welch See fewer	$100MM	$111MM	$294MM	$452MM
The Toxic Avenger (2023) Shelly (Dearly Missed) Shelly (Dearly Missed) See fewer
Herself (2020) Grainne Grainne See fewer				$779K
Thomas & Friends: The Great Race (2016) Caitlin (UK & US) (voice) Caitlin (UK & US) (voice) See fewer				$3.7MM
Thomas & Friends: Start Your Engines! (2016) (Video) - Caitlin (UK & US) (voice) Caitlin (UK & US) (voice) See fewer
Thomas & Friends: Tales on the Rails (2015) (Video) - Slip Coach (UK & US) (voice) (as Rebecca O' Mara) Slip Coach (UK & US) (voice) (as Rebecca O' Mara) See fewer
Thomas & Friends: Whale of a Tale and Other Sodor Adventures (2015) (Video) - Caitlin (UK & US) (voice) Caitlin (UK & US) (voice) See fewer
Thomas & Friends: The Christmas Engines (2014) (Video) - Slip Coach (UK & US) (voice) (as Rebecca O' Mara) Slip Coach (UK & US) (voice) (as Rebecca O' Mara) See fewer
Jimmy's Hall (2014) Mrs. O'Keefe Mrs. O'Keefe See fewer	€6.9MM	$20K	$561K	$4.8MM
Thomas & Friends: Trouble on the Tracks (2014) (Video) - Caitlin (UK & US) / Slip Coach (UK & US) (voice) (as Rebecca O' Mara) Caitlin (UK & US) / Slip Coach (UK & US) (voice) (as Rebecca O' Mara) See fewer
Thomas & Friends: The Thomas Way (2013) (Video) - Caitlin (UK & US) (voice) (as Rebbecca O' Mara) Caitlin (UK & US) (voice) (as Rebbecca O' Mara) See fewer
Thomas & Friends: King of the Railway (2013) (Video) - Caitlin (UK & US) (voice) Caitlin (UK & US) (voice) See fewer				$420K
Laika (2010) (Short) - Laika (voice) Laika (voice) See fewer

See all past film & video

Past Television (11 titles)	Episodes
Der Irland-Krimi (2024) (TV Series) - Edna Joye (1 episode, 2024) Edna Joye (1 episode, 2024) See fewer Gnadentod (Sep 19, 2024) Season 5, Episode 1 - Edna Joye Edna Joye See fewer	1
Smother (2023) (TV Series) - Sheahan (1 episode, 2023) Sheahan (1 episode, 2023) See fewer Episode #3.6 (Mar 12, 2023) Season 3, Episode 6 - Sheahan Sheahan See fewer	1
Doctors (2007–2020) (TV Series) - Bethany Hastings / Cleo Tucker (2 episodes, 2007) Bethany Hastings / Cleo Tucker (2 episodes, 2007) See fewer Peccata Mundi (May 15, 2020) Season 21, Episode 124 - Bethany Hastings Bethany Hastings See fewer Background Noise (Nov 6, 2007) Season 9, Episode 125 - Cleo Tucker Cleo Tucker See fewer	2
The Best of Thomas & Friends Clips (US) (2015–2020) (TV Series) - A Slip Coach / Caitlin (25 episodes, 2015) A Slip Coach / Caitlin (25 episodes, 2015) See fewer Den Vs Dart - Diesel Engines (Feb 8, 2020) Season 2, Episode 126 - A Slip Coach (voice) A Slip Coach (voice) See fewer See more See fewer Loading	25
Bump (2019) (TV Mini-series) - Colette (1 episode, 2019) Colette (1 episode, 2019) See fewer Pilot (Sep 15, 2019) Season 1, Episode 1 - Colette Colette See fewer	1
Thomas & Friends: Global Friends! (2018) (TV Mini-series) - Caitlin / Slip Coach (3 episodes, 2018) Caitlin / Slip Coach (3 episodes, 2018) See fewer Emily the Earnest Energetic Engine (Jul 2, 2018) Season 1, Episode 13 - Caitlin (voice) Caitlin (voice) See fewer See more See fewer Loading	3
Thomas & Friends: Clips (UK) (2015–2017) (TV Series) - Caitlin / Rebecca / A Slip Coach (7 episodes, 2015) Caitlin / Rebecca / A Slip Coach (7 episodes, 2015) See fewer Racing Around with Caitlin (Nov 2, 2017) Season 1, Episode 172 - Caitlin (voice) Caitlin (voice) See fewer See more See fewer Loading	7
Red Rock (2017) (TV Series) - Frankie / Frankie Hynes (3 episodes, 2017) Frankie / Frankie Hynes (3 episodes, 2017) See fewer Episode #4.32 (May 31, 2017) Season 4, Episode 32 - Frankie Frankie See fewer See more See fewer Loading	3
Line of Duty (2016) (TV Series) - Rachel (2 episodes, 2016) Rachel (2 episodes, 2016) See fewer The Process (Mar 31, 2016) Season 3, Episode 2 - Rachel Rachel See fewer Monsters (Mar 24, 2016) Season 3, Episode 1 - Rachel Rachel See fewer	2
Thomas & Friends (2013–2015) (TV Series) - Caitlin (UK & US) / The Second Slip Coach (UK & US) (6 episodes, 2013) Caitlin (UK & US) / The Second Slip Coach (UK & US) (6 episodes, 2013) See fewer Best Engine Ever (Oct 19, 2016) Season 19, Episode 16 - Caitlin (UK & US) (voice) Caitlin (UK & US) (voice) See fewer See more See fewer Loading	6
The History of Mr Polly (2007) (TV Movie) - Minnie Larkins Minnie Larkins See fewer

See all past television

Other (2 titles)
Doctor Who: The Sixth Doctor Adventures (2025) (Podcast Series) - Saiorse O'Grady (1 episode, 2025) Saiorse O'Grady (1 episode, 2025) See fewer Saiorse of the Seven Seas (Aug 12, 2025) Season 5, Episode 4 - Saiorse O'Grady (voice) Saiorse O'Grady (voice) See fewer
Thomas & Friends Storytime (2020–2021) (Podcast Series) - Caitlin (UK & US) / A Slip Coach (UK & US) (4 episodes, 2020) Caitlin (UK & US) / A Slip Coach (UK & US) (4 episodes, 2020) See fewer Chases and Races (Jul 6, 2021) Season 2, Episode 9 - Caitlin (UK & US) (voice) Caitlin (UK & US) (voice) See fewer See more See fewer Loading

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