In July 2005, Simon got married to Lisa Muddiman. Lisa Muddiman is a beautiful lady and a lovely housewife. They have been bonded into this married life for about a decade. Till date they have welcomed four children together. His nationality is Irish and he has mixed ethnicity.
At the age of 28, Simon starred the role of Soldier 1 in the movie Mystic Knights of Tir Na Nog. Two years later he appeared in the movies like The Black Suit, Saltwater, When the Sky Falls, Rat, David Copperfield and so on. He got his rise in fame in 2001 after he began starring the role of Michael Quinn in a comedy-drama series Bachelors Walk. He appeared in this TV series till 2006. He is also famous for portraying the role of Dessie in the movie Happy Ever Afters. His net worth is unknown.