According to Stephen, his lucky number is 35, which he says has always brought him good luck.
While Stephen was chatting to opera singer Katherine Jenkins at a party, she told him that she'd always had an ambition to have a go at being a magician's assistant. Stephen remembered this and later invited her to appear on his Saturday night game show Magic Numbers where, assisted by pop singer Olly Murs, he sawed her in half in a clear-sided box.
He's a regular performer in pantomime.
He used to work as a Redcoat at the Butlins holiday camp at Minehead.
He reached grade seven on both the piano and violin.
His interest in magic comes from his father, who used to teach him tricks before he went to bed when he was 13.
He grew up in London and was educated at St Bonaventure's Catholic Comprehensive School in Forest Gate, Newham, London.
He's the third of four children, with two older brothers and a younger sister.
His parent's names are Christopher and Maureen.
When he appeared on the 29 September 2007 episode of Ant & Dec's Saturday Night Takeaway, he performed the world premiere of a brand new version of the Sawing a Woman in Half illusion. This was a new version of the so-called "double sawing" in which two women, in this case his Saturday Showdown co-presenter Holly Willoughby and her best friend and fellow TV presenter Fearne Cotton, are sawed in half at the same time and have their lower halves switched. In Stephen's new version of the illusion, the boxes used to cover the assistants were made of clear plastic, allowing the audience to see right inside at all times.
Growing up, his role model was Tommy Cooper.
His hobbies include playing football and reading.
He has been good friends with fellow presenter Gareth Jones for over eight years.
He is a supporter and works on behalf of the charity Childline.
His favourite childhood book is The Cat in the Hat.
His favourite subjects at school was music and drama.
His ambition is to star as Joseph in Joseph And The Amazing Technicolour Dreamcoat.
In 2005 he played the lead role of Danny Zuko in the stage version of Grease.
In 2005 he was a part of the Royal Variety Performance at the Victoria Palace Theatre.
When he was 17 he became the youngest member of the Magic Circle.
He was the executive producer and created a show on channel 4 called "Freaky".
He started presenting in 1998 for the children's channel CITV.
As well as being a presenter Stephen is also a magician.
He is a regular in Butlin shows where he performs magic tricks and enterains.
In 2005 he impersoninated Robbie Williams on Celebrity Stars In Their Eyes.
He is good friends with fellow Saturday Showdown presenter Holly Willoughby, who often acts as his assistant in various illusions such as Sawing a Woman in Half.
His favorite TV show when he was a child was Rentaghost.
While his least favourite food is a hot curry, he tries to eat his favorite lunch, chicken Caesar salad, at least three times a week.
His favourite item of clothing is his red and blue shirt.
Stephen: (On working with co-presenter Holly Willoughby) It's really great working with Holly because she's always up for anything and feels so comfortable with all the different illusions. Usually, when you tell a woman that you want to saw her in half, her reaction is 'ummmm, I don't know about that'. But when I tell Holly that I've got a new illusion I want to try out on her, her usual reaction is 'great - how many pieces am I going to be in this time?' I think she really enjoys being sawed in half, and actually looks forward to it. Yeah, she was a bit nervous before the first time I sawed her in half but, once I'd sawed through her and separated her halves, she realised it was nothing to worry about and started to enjoy it.
Stephen: I used to go to Butlins Minehead every year with my family - I've got two brothers and a sister - and it was after doing a magic act for their talent contest that they offered me a job. It was a great training ground, there's not many places you can learn to perform like that.
Stephen: I've always loved entertaining so I've been to my fair share of auditions. My father taught me some basic magic tricks when I was a kid and by 18 I was a member of the Magic Circle.
Stephen: (On working with Britain's Got Talent judge David Walliams) David and I love winding each other up. I'd play practical jokes on tour - I'd leave framed photos of me in his dressing room and force him to wear badges with my name on.
Stephen: I always like to get the contestants laughing and larking about on the show, especially if they've had a tough time on stage.
Stephen: This year on BGT, the producers told me I was going to be talking to this lady called Julie, who had come cos she was my Number One Fan. She brought flowers for me and there was this bit where I was feeding her strawberries when she told me she dreams about me every night and fantasises about me every day. And I thought to myself, 'Ah, OK'. Er, that was quite 'special'.
Stephen: I was doing a stage show in Blackpool, and for the finale I'd get a guy up on stage, ask him for a fiver or a tenner, get him to sign it and make it disappear. One night this bloke hands over a tenner and as he's signing it I could hear this thudding noise, and his wife was walking up onto the stage – a big girl she was – and started having a go at him: 'Where did you get that from? You never had that this afternoon when I wanted a burger!' She snatched the money, slapped him round the face and stormed back to her seat. All I could say was, 'I can't beat that, thanks so much, all the best and goodnight.' I walked off stage and the guy's standing there with a huge hand mark on his face.
Stephen: When I was on CITV, we used to have a bet about who could get a rude word into the links. The best one I did was where the kids had to call in during Sabrina The Teenage Witch and tell me the name of her cat. The word I had to get in was 'dildo'. And so it was, 'Do give us a call on whatever number it was and dildo carefully'.