Simon Helberg (Howard Wolowitz)
Howard Wolowitz is an aerospace engineer at Caltech and somehow found a way to travel to space at one point. His mother constantly dotes over Howard and treats him like a baby, much to the delight of the rest of the TBBT crew. It seems that even going to outer space isn’t enough to escape the gravity of mom’s love.
Howard marries Bernadette in the fifth season. It was Penny who set the two up two seasons prior when they were co-workers at The Cheesecake Factory. The couple would later on have a baby daughter named Hailie. Howard is the most confident of the group, though he probably shouldn’t be.