Thaddeus O'Sullivan worked on a variety of projects during his entertainment career. O'Sullivan worked on a variety of projects during his early entertainment career, including "Anne Devlin" (1984), "Das Innere Bloss" (1981) starring Claudia Boulton and "Elizabeth Maconchy" (1984). He also contributed to "On a Paving Stone Mounted" (1978), "Pigs" with Jimmy Brennan (1984) and "Traveller" (1982) starring Judy Donovan. O'Sullivan was nominated for a Short Film BAFTA Award for "The Woman Who Married Clark Gable" in 1985 as well as for an Outstanding Directing for a Miniseries, Movie or a Dramatic Special Primetime Emmy Award for "Into the Storm" in 2009. In the eighties, O'Sullivan devoted his time to various credits, such as "Rocinante" (1986) starring John Hurt, "The Love Child" (1988) and "The Return" (1988). He also worked on "The Road to God Knows Where" (1988). More recently, O'Sullivan directed the dramatic adaptation "Nothing Personal" (1997) with Ian Hart, "Ordinary Decent Criminal" (2000) and the dramatic adaptation "The Heart of Me" (2003) with Paul Bettany. He also appeared in the drama "Stella Days" (2012) with Martin Sheen. Most recently, O'Sullivan directed "The Crimson Field" (PBS, 2014-15).