Born 22 October 1985 to businessman Frank Collins, CEO and owner of Collins Communications and Michelle Collins (née Vernon), an MD and neuroscientist.
He studied at Eton College with Prince Harry and Edward McClaire, Marquess of Wardour and have been good friends with them ever since. He also maintain a good friendship with Edward's younger sister, Lady Eleanor. He studied Public Affairs and Mass Communication at the London School of Economics. He's a publicist and currently works for his father. He has two younger siblings: David, who's 25 and Florence, who is 21.
In 25 October 2014 he married long-time girlfriend, Mary Kingston at St. Pierre's Church in Chepstow, Wales. Prince Harry, Lord Edward McClaire, Lady Eleanor McClaire and Lady Valerie Wentworth were among the guests.
In 7 August 2015, Collins and his wife welcomed their first child at King Edward VII's hospital, a baby girl named Rose Arabella Collins. In 29 January 2016, the baby was christened at St. Mary Abbots Church, in Kensington. Prince Harry and Lady Eleanor, along with Collins' siblings, where her godparents.