Johnny Galecki plays one of the main male protagonists, Leonard Hofstadter, who is an experimental physicist. While he is geeky, he also succeeds in winning over attractive women like his neighbor Penny. Of course, they end up going the distance and tying the knot on the show. In real life, Johnny also has a long history of dating.
After working on the show Roseanne, he dated briefly one of his on-screen girlfriends, Sara Gilbert, who also showed up on Big Bang as Leslie Winkle. Eventually, Sara came out of the closet and even had a five-year-long relationship with Linda Perry. We hope Johnny got over her by then!
Mayim Bialik and Michael Stone
Mayim Bialik plays the part of Amy Farrah Fowler, who is a neurobiologist, and Sheldon Cooper’s love interest over the course of the show. The two meet on an online dating site after Raj Koothrappali and Howard Wolowitz see her and think that she will be a good match for Sheldon.
In real life, Mayim Bialik was married to Michael Stone, with the latter converting to Judaism from Mormonism in the name of love. The couple had a Victorian-themed wedding, albeit with traditional Jewish customs. The pair had two children together before divorcing in 2013. The two boys still have two loving parents though.
Jim Parsons and Todd Spiewak
Jim Parsons, known for his role as Sheldon Cooper on The Big Bang Theory, ended up marrying his longtime boyfriend Todd Spiewak. After 15 years together, Parsons decided to legalize their relationship, even though he initially didn't consider marriage significant. They tied the knot in May 2017 at New York City's Rainbow Room.
Parsons cherished their bond, comparing it to a divine connection. The wedding took place on the 65th floor of Rockefeller Center and was attended by close friends, family, and fellow cast members from the show. It was a joyous celebration for the couple and their loved ones.
Simon Helberg and Jocelyn Towne
Simon Helberg plays the iconic Howard Wolowitz, a nerdy aerospace engineer and former astronaut who still lives with his overbearing mother. Eventually, though, he gets married to the sweet Bernadette. In real life, Simon married Jocelyn Towne in 2007. Jocelyn is also an actress and has acted in minor roles in movies and television since 2000.
The two even worked on a film together called We’ll Never Have Paris in which Simon starred as the lead and Jocelyn produced it. The happy couple have two children together, a daughter named Adeline who is five years old, and a son named Wilder who is three.
Johnny Galecki and Kaley Cuoco
The Big Bang Theory fans around the globe were super excited to find out that two of the main stars of the show, who happened to play a couple on the show, were also dating in real life. Leonard and Penny dated both in the show and as Johnny and Kaley from 2008 until 2010.
They tried very hard to keep their relationship as private as possible. Kaley Cuoco said about their relationship, “It was such a huge part of my life and no one knew about it,” she continued, “It was a wonderful relationship, but we never spoke a word about it and never went anywhere together.”