The 30-year-old actor and singer is originally from Lurgan and now lives in London. He will be performing his one-man show All I Want For Christmas at the Black Box in Belfast this Sunday.
My best friends
One of them would be the first person I met when I landed in London 11 years ago. Her name is Venetia Grivas and we met while we were both waiting to do our audition for drama school - The Arts Educational School - as we were waiting at the same time.
We got talking and we clicked straight away. We were each hoping that the other got in and discovered on the first day that we both had. We're friends now and Venetia is a model and actress in London.
My other best friend is Marcus Hunter-Neill, whom I've known since I was 16 - we even used to share a house together. Marcus has always been really supportive. He had me on one of the Radio Ulster shows he contributed to, recently and always flies over to see me when I'm appearing in anything in London.
Whenever we get on the phone to each other we can be there for hours.
My parents, Priscilla and Gerard
My parents are still in Lurgan. Mum works in customer service and my dad has worked in steel construction for the past 35 years. I'm also the third of four children and as of this year we will all have finally moved away from home.
My sister Edel is a nurse and she'll be moving to Australia next year, while my brother Michael is a carpenter and has been living in San Francisco for 13 years. Derbhla, my younger sister, has already emigrated to Sydney where she works in the events industry. I never thought that by moving to London I would be the closest to home. To be fair, we'll get to have great holidays now, though!
My parents have always been supportive of my career, particularly on a financial level when I went to drama school because the fees really aren't cheap. They both did everything they could to keep a roof over my head in London.
Luckily, I was offered a scholarship halfway through my training. They'll be in the front row on Sunday night and I know it will be a proud moment for them.
Who I go to for advice
Ross McBride and Colin Leggit are two very close friends of mine who have nothing to do with the industry I work in, and that's really something I need.
I have actor friends who are only friends with other actors and everything is a song and dance - you really need a reality check.
They both love the arts and support what I can do, but they give me the best and most level-headed advice ever. I can always rely on them to help me get away from being Conleth the actor.
My celebrity crush, Adam Lambert
He came runner-up on American Idol and I recently saw him singing with Queen on the X Factor. He's so talented and probably the only person, other than Freddie Mercury, that could sing the Queen material and do it justice. It was the fact that he was so talented which made him hot.
Chris Hocking was the head of my course in drama school. When we arrived there everyone was scared of him. He doesn't teach you until second year, so you spend your first year being terrified of him. When I got into his class he really took me under his wing. He gave me confidence and pushed me, and I'm forever thankful for that.
Fantasy dinner party
Mariah Carey would be my first guest as she's my favourite singer. Next, I would invite Bette Midler. I saw her on her ITV special this week and I'm going to see her in London, she's in most of my favourite films.
Next, I would ask Simon Cowell. I always agree with him on the X Factor and I think he's very smart. Finally, I would ask Britney Spears to find out what she's like - every interview she does on TV seems so scripted.