William Crawley is a journalist with BBC Northern Ireland. He has presented BBC Radio Ulster's weekly Sunday Sequence programme since March 2002, and Not the Nolan Show, a weekly current affairs phone-in programme, since July 2005. His other radio presenting roles include: Talk Back, BBC Radio Ulster's flagship news and current affairs programme; Evening Extra, the station’s drive-time news programme; The Book Programme, a literary review programme; and Arts Extra, a daily arts review programme.

Past programmes include: A Sky Full of Voices, a series of six programmes which explored the BBC's contribution to life in Northern Ireland; The Land, a six-part documentary series on how the people in Ireland relate to the land they inhabit; and The Bonfire Makers (for BBC Radio Four), an examination of Northern Ireland's controversial annual Loyalist bonfire tradition.

His television presenting roles include Frozen North (BBC One NI), Festival Nights (BBC Two NI), Hearts and Minds (BBC One NI), What's Wrong With ...? (BBC One NI), and More Than Meets The Eye (BBC Two NI), a four-part series about folklore in contemporary Ireland.