[2] After spending several years there doing odd jobs, he was chosen for the part of Ned, the emigrant, in the 1964 world première of Brian Friel's Philadelphia, Here I Come!.
In his two-hour solo performance, Morrissey portrays a "porter-swilling, nose-picking pub philosopher with ingenious solutions to the world's problems".
[6] Morrissey went on to create two more one-man shows, Patrick Gulliver, drawn from the works of Jonathan Swift, and Joycemen, which features various characters from James Joyce's Ulysses.
In 2009, Morrissey returned to prime-time Irish television as Cass Cassidy in the RTÉ One soap opera, Fair City.
In 2011, Morrissey was among the nominees for Best Supporting Actor at the annual Irish Film and Television Awards (IFTAs) for his role in Fair City.