Believe It or Not was an episode from the original series of Mrs Brown's Boys,released in 2004. The characters Trevor and Simon Brown are both written out of the series with Paddy Houlihan taking over the role of Dermot Brown from Clyde Carroll and Danny O'Carroll being recast as Buster Brady. Also, the role of Dino Doyle was taken over by Gary Hollywood. Dino Doyle was previously portrayed by Dermot Stanley in The Last Wedding.