{{Short description|American-born Irish actor}} {{Use dmy dates|date=August 2025}}
'''Cillian O'Sullivan''' (born {{birth based on age as of date|29|2019|03|noage=1}})<ref name="echo2019">{{cite news |first=Colette |last=Sheridan |title=Cork men set for film premiere on Paddy's Day |work=The Echo |date=16 March 2019 |url=https://www.echolive.ie/corklives/arid-40156802.html |access-date=2025-08-13 |quote=Cillian, 29, will be at…}}</ref> is an American-born Irish actor who has had roles in ''Then You Run'' (Sky 2023),<ref name="indo2023"/> ''In From the Cold'' (Netflix 2022),<ref>{{cite news |author=<!--not stated or generic "Staff"--> |title=Cork Actor Cillian O'Sullivan Lands Lead Role In New Netflix Series 'In From The Cold' |work=Cork's Red FM |date=27 January 2022 |url=https://redfm.ie/post/cork-actor-cillian-o-sullivan-lands-lead-role-in-new-netflix-series-in-from-the-cold/ |access-date=5 February 2022 |archive-url=https://web.archive.org/web/20230328182147/https://redfm.ie/post/cork-actor-cillian-o-sullivan-lands-lead-role-in-new-netflix-series-in-from-the-cold/ |archive-date=2023-03-28 |url-status=dead}}</ref> ''Bull'' (CBS 2019),<ref>{{cite web|url = https://www.castingnetworks.com/news/my-casting-story-cillian-osullivan-on-in-from-the-cold/ | website = castingnetworks.com | title= My Casting Story: Cillian O'Sullivan on 'In from the Cold' | date = 6 April 2022 | accessdate = 8 July 2022}}</ref> ''Vikings'' (History 2016),<ref name="rte2022">{{cite web|url = https://www.rte.ie/entertainment/2022/0126/1276042-corks-cillian-osullivan-comes-in-from-the-cold/ | publisher = RTÉ | website = rte.ie | title = Cork's Cillian O'Sullivan comes In From the Cold | date = 27 January 2022 | accessdate = 5 February 2022}}</ref> ''6Degrees'' (BBC 2012),<ref>{{cite web|url = https://www.radiotimes.com/tv/drama/in-from-the-cold-cast-netflix/ | website = radiotimes.com | title = Meet the cast of Netflix's In From the Cold | accessdate = 5 February 2022}}</ref> ''Single-Handed'' (RTÉ 2009),<ref>{{cite web|url = https://www.bbc.com/news/uk-northern-ireland-17154057 | publisher = BBC | website = bbc.com | title = BBC drama follows six freshers starting university in Belfast | date = 24 February 2012 | accessdate = 5 February 2022 }}</ref> and ''Seacht'' (BBC/TG4 2008).<ref name="bbcprofile">{{cite web|url = https://www.bbc.co.uk/programmes/profiles/1PQwcfmhXgLzsQVWMwSS737/conor-martin| publisher = BBC | website = bbc.co.uk | title = 6Degrees - Conor Martin | accessdate = 5 February 2022}}</ref>
Born in New York to Irish parents,<ref name="echo2019"/> O'Sullivan's family moved back to Ireland when he was a child, and he attended school in Ballinlough, Cork.<ref name="examiner2022">{{cite web|url = https://www.irishexaminer.com/lifestyle/artsandculture/arid-40799478.html | publisher= Irish Examiner | website = irishexaminer.com | title = In From the Cold: Cork actor Cillian O'Sullivan on his new Netflix spy thriller | date = 4 February 2022 | accessdate = 5 February 2022}}</ref> From an Irish-speaking family,<ref name="echo2019"/> his first television roles were in Irish language productions for TG4.<ref name="bbcprofile"/> After roles in several BBC productions,<ref name="bbcprofile"/> and playing Bobby Storey in the 2017 film ''Maze'',<ref name="echo2019"/> O'Sullivan moved to the US, obtaining recurring roles in NBC and Netflix series.<ref name="rte2022"/><ref name="examiner2022"/> ''Misty Button'', in which he had a lead role,<ref>{{cite web|url = https://www.independent.ie/regionals/cork/news/cork-actors-cillian-osullivan-and-shaun-kennedy-feature-in-new-york-crime-caper-movie-misty-button/40764297.html | work = The Corkman | title = Cork actors Cillian O'Sullivan and Shaun Kennedy feature in New York crime caper movie Misty Button | date = 18 August 2021 | accessdate = 28 July 2023 }}</ref> won the "best narrative feature" at the 2019 San Luis Obispo International Film Festival.<ref>{{cite web|url = http://www.iftn.ie/news/?act1=record&only=1&aid=73&rid=4292615&tpl=archnews&force=1 | website = iftn.ie | title = Irish-American Feature Film 'Misty Button' Wins Best Narrative Feature Award on St. Patrick's Day | date = 20 March 2019 | accessdate = 28 July 2023 }}</ref>
In 2021, he filmed a Sky Studios series titled ''Then You Run'',<ref name="examiner2022"/><ref>{{cite web|url = https://www.presseportal.de/pm/33221/5001685 | website = presseportal.de | publisher = News aktuell GmbH | title = Dreharbeiten des Sky Original "Then You Run" haben begonnen | language = de | date = 24 August 2021 | accessdate = 24 September 2022 }}</ref> which was released in July 2023.<ref name="indo2023">{{cite news |first=Dónal |last=Lynch |title='I was screaming at people online, coked off my head': Corkman Cillian O'Sullivan's journey from wild child to TV's hottest new talent |work=Irish Independent |date=2023-07-08 |url=https://www.independent.ie/entertainment/i-was-screaming-at-people-online-coked-off-my-head-corkman-cillian-osullivans-journey-from-wild-child-to-tvs-hottest-new-talent/a1033129156.html |url-access=subscription |access-date=2025-08-13}}</ref> As of 2022, O'Sullivan was reportedly working on a film titled ''The Lost Princess''.<ref>{{cite web|url = https://indiewrapmag.com/film/mourad-zaoui-and-his-upcoming-role-in-the-new-action-adventure-film-the-lost-princess/ | website = indiewrapmag.com | title = Mourad Zaoui And His Upcoming Role In The New Action Adventure Film, The Lost Princess | date = 20 April 2022 | accessdate = 6 October 2023 }}</ref>
In 2025, O'Sullivan appeared as Devlin, an Irish gangster, in ''Daredevil: Born Again'',<ref>{{Cite web |url=https://www.imdb.com/title/tt18923754/fullcredits/?ref_=tt_ov_st#cast |title=Daredevil: Born Again (TV Series 2025– ) - Full cast & crew - IMDb |language=en-US |access-date=2025-03-26 |website=www.imdb.com}}</ref><ref>{{cite web|url = https://www.echolive.ie/entertainment/whatson/arid-41640706.html | publisher = The Echo | website = echolive.ie | title = I had to learn Cork ways, says New York-born actor Cillian | date = 29 May 2025 | accessdate = 17 July 2025 }}</ref> and as Dr. Roger Korby in the third season of ''Star Trek: Strange New Worlds''.<ref>{{cite web |date=19 June 2025 |title=Cillian O'Sullivan Says His Roger Korby Has A "Smidge" Of Darkness In 'Star Trek: Strange New Worlds' S3 |url=https://trekmovie.com/2025/06/19/cillian-osullivan-says-his-roger-korby-has-a-smidge-of-darkness-in-star-trek-strange-new-worlds-s3/ |accessdate=17 July 2025 |website=trekmovie.com}}</ref>
==References== {{reflist}}
==External links== * {{imdb name}}
{{DEFAULTSORT:OSullivan, Cillian}} Category:Male actors from Cork (city) Category:21st-century Irish male actors Category:Irish male television actors Category:1990s births Category:Living people
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