She said she will bring “sunshine and laughter” to the Big Brother house, and that she is looking forward to making new friends. If she wins the Big Brother crown, she said she would splurge the prize pot on new patio doors. Marcusopen image in gallery Marcus, 22, has arrived in the Big Brother house ( ITV )Marcus, a 22-year-old mechanical engineer, is one of this year’s youngest housemates. “Shows like Big Brother show the normality of people – you can't get more personal than watching someone 24/7,” he said. Big Brother airs Sunday to Friday on ITV2 and ITVX at 9pm