Seamus O'Neill (born 8th December 1952 in Richmond, North Yorkshire) appeared on Coronation Street in five roles:
- Mr Pollard, an estate agent who gave a valuation of 5 Buxton Close in October 1983
- Maurice Preston in November 1996
- Photographer Arthur Whiston, commissioned at Steve and Karen McDonald's second wedding ceremony at Walcot Manor in February 2004
- Dave Deakin, a shady friend of Pam Hobsworth in January 2009
- A Catholic priest who heard Pat Phelan's confession in August 2017.
His other television credits include roles in Auf Wiedersehen, Pet, Albion Market, Brookside, EastEnders, Emmerdale, Civvies, Covington Cross, Cracker, Casualty, Roughnecks, Birds of a Feather, In Suspicious Circumstances, Burn It, The Royal, Waterloo Road, Strictly Confidential, New Street Law, Mobile, Boy Meets Girl, This Is England '86, Hollyoaks, Mount Pleasant, Dark Angel and Brassic.
Film roles include Bob's Weekend, My Kingdom, Yasmin, Dead Man's Shoes, Summer, Murder in Mind, Pelican Blood, Inbred, War Horse, Sightseers, The List, Two Days in the Smoke, Electricity, Attack of the Adult Babies, The Banishing and Evie.
On stage, he appeared in productions of Drums in the Night, The Shoemaker's Holiday and Troilus and Cressida.
