Paul Crossan (born 7 May 1973, also known as Rick O'Shea) is an Irish radio personality. He was born in Drimnagh, Dublin, grew up in Crumlin,^[1] and attended Drimnagh Castle Secondary School and University College Dublin. He has been a presenter on RTÉ 2fm since 2001.^[2][3] O'Shea also presented The Poetry Programme on RTÉ Radio 1 in 2015 and 2016.^[4] Since 2017 he has been presenting the morning show on RTÉ Gold. He has presented The Book Show on RTÉ Radio 1 since 2019.

Before joining RTÉ 2fm in 2001, he had worked for East Coast Radio,^[5] Atlantic 252, South East Radio and FM104. Rick had previously been involved with hospital radio.^[6] O'Shea presented the weekday afternoon show on 2fm until 2015, when the show was moved to the weekend schedule.^[7][8]

He presented The Poetry Programme on RTÉ Radio 1 in 2015 and 2016.^[9]

O'Shea was diagnosed with epilepsy at the age of 16.^[10] and has been a patron of Epilepsy Ireland, formerly known as Brainwave, the Irish Epilepsy Association, since 2006.^[11] He represented the charity in an Irish celebrity version of the quiz show Mastermind in 2012, winning the competition.^[12][13]

He runs The Rick O’Shea Book Club – Ireland's largest book club^{[non-primary source needed]} with over 28,000 members and recommends the Eason Must Reads lists 4 times a year with author Sinéad Moriarty. He is currently presenting The Book Show on RTÉ Radio 1.^[14][15]

O'Shea has been nominated for Best Irish Radio DJ at the Meteor Music Awards on three occasions, in 2002,^[16] 2008^[17] and 2009.^[18] In 2009 he was winner of Entertainment.ie's "Sexiest Radio Voice" award.^[19]