Johnny Galecki

Johnny Galecki made his acting debut in the 1987 miniseries Murder Ordained. Two years later, he landed a part in National Lampoon’s Christmas Vacation, followed by American Dreamer and Billy. While on the ABC sitcom, he began a recurring role on Roseanne as David Healy. He became a main cast member in 1992 and remained there until its end in 1997. He also returned for the revival series in 2018. After appearing in the films Suicide Kings (1997) and I Know What You Did Last Summer (1997), Galecki landed his breakthrough role as Leonard Hofstadter on The Big Bang Theory, which aired from 2007 to 2019.

Galecki dated his Big Bang Theory costar (and his character’s main love interest) Kaley Cuoco, from 2007 to 2009. After their split, the pair remained good friends. He went on to date Alaina Meyer from 2018 to 2020. The pair welcomed a child together, son Orbison, in November 2019.

The actor revealed in February 2024 that he was married to Morgan Galecki and the pair quietly welcomed a daughter, Oona.