Tiernan is a writer and comedian.  As a writer, he’s most recently scripted episodes of Hey Duggee on Cbeebies. In his stand-up for adults, he’s performed comedy all over the world, working with and writing for several well-known acts.

Tiernan also co-runs the Comedy Club 4 Kids, performing and writing comedy for children and their families.  And he writes and co-hosts childrens’ mystery podcast Bust or Trust, as well as his own Radio Nonsense podcast with over 18k listeners a month. He also likes crisps, finding good excuses to avoid socialising and singing all the wrong words to songs.