Michael played David Underhill, a very successful physicist Penny dates until she realizes that he is married. Prior to The Big Bang Theory, he had a recurring role on the CW drama One Tree Hill as Cooper Lee. He also had a recurring role as the ditsy boyfriend of Robin Scherbatsky on How I Met Your Mother – Nick.
In 2009, he tied the knot with Sandra Hess, a gorgeous Swiss actress, and fashion model. She is best known for her role as Sonya Blade in the film Mortal Kombat: Annihilation. The two have been happily married for more than a decade.
Michael J. Massimino and Carola Pardo
Michael J. Massimino's memorable appearance on The Big Bang Theory showcased him playing himself, a respected NASA astronaut with an impressive track record of two Space Shuttle missions. Through a Skype conversation with Howard, Michael offered guidance and advice on Howard's upcoming expedition and the responsibilities it entailed.
In his personal life, Michael has been happily married to Carola Pardo since 1989. Together, they have raised a son and a daughter, forming a loving and supportive family unit. Carola's strength and resilience were tested during Michael's space missions, as she assumed the role of caregiver for their young children while he was away.
Alessandra Torresani and Rob Kardashian
This might be one of the flimsiest examples of a cast member of "The Big Bang Theory" and their significant other, but bear with us while we break it down. While we are not able to say whether this relationship was actual, the one son of the famous Kardashian clan was for some time connected to actress Alessandra Torresani in 2011.
The two were seen together at the Coachella music festival and dating rumors started circulating from there. As is well known, Rob later dated model and former adult dancer, Blac Chyna and they had a baby together before they split. We later saw Torresani as Claire on The Big Bang Theory.
Johnny Galecki and Ariella Nicole
The details of Johnny Galecki and Ariella Nicole's relationship are pretty foggy, truth be told. Most sources claim they were together around the time of September, 2015. Johnny posted an unclear picture of him and a blonde woman kissing on New Year's and fans were convinced that he was back together with his ex-girlfriend and costar, Kaley Cuoco.
The theory was proven wrong, as the girl in the picture was actually Ariella Nicole. The pair were also seen on the beach together while on a romantic holiday in Maui. We don’t know much about Ariella, but we do hope to get more details in the near future.
David Barrera and Maria Canals-Barrera
David Underwood made a notable appearance on The Big Bang Theory, portraying Officer Hernandez, who takes charge of Sheldon's case after he falls victim to a robbery, leading to his visit to the police station. Beyond his role on the show, David has showcased his acting talents in numerous other TV shows and movies.
One of his most recognizable performances came as Sgt. Ray 'Casey Kasem' Griego in the acclaimed series Generation Kill, solidifying his reputation as a versatile actor. Off-screen, David has found enduring love in his marriage to actress and voice actress Maria Canals, which has lasted since 1999. The couple, who radiate adorableness, share the joy of parenthood, blessed with two children who complete their beautiful family dynamic.