While apparently an atheist, it was hinted in series 6 that Liam may have had change of perception on the matter, even when he expertly refuted the arguments of two Jehovah's Witnesses, whom Monica tricked into babysitting Liam and Stella (Nikita Brownlee), he stated that "they may not know it, but they're right and I'm wrong". He also tried to get rid of the clothes Debbie and Maxine stole, thinking that they brought "bad Karma". In series 7, Liam quoted from passages in the Old and New Testaments that condoned prostitution when Kelly Maguire (Sally Carman) thought that her occupation would disqualify her as godmother of Karen (Rebecca Atkinson) and Jamie Maguire's (Aaron McCusker) son, Connor. And was seen later with a copy of the Torah when counselling a Jewish convert with a penchant for pork-scratchings. Although knowledgeable about religion, Liam does not appear to endorse nor practice any of them.