![Costars Who Secretly Dated Behind the Scenes](/wp-content/uploads/2024/02/Costars-Who-Secretly-Dated-Behind-the-Scenes.jpg?crop=145px%2C1002px%2C1765px%2C998px&resize=600%2C338&quality=86&strip=all)
Johnny Galecki
Although born in Belgium, Johnny Galecki and his two siblings grew up in Illinois. He dropped out of school in 8th grade and made his acting debut in the 187 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. He became a main cast member in 1992 and remained there until its end in1997. He also returned for the revival series in 2018. After starring in multiple movies, he landed his breakthrough role 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 the split, the pair remained best friends. He went on to date Alaina Meyer from 2018 to 2020, when they split. 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.
You might also be interested in:
Articles about Johnny Galecki
![Costars Who Secretly Dated Behind the Scenes](/wp-content/uploads/2024/02/Costars-Who-Secretly-Dated-Behind-the-Scenes.jpg?crop=145px%2C1002px%2C1765px%2C998px&resize=600%2C338&quality=86&strip=all)
![The Big Bang Theory' Cast: Where Are They Now?](/wp-content/uploads/2021/04/The-Big-Bang-Theory-Cast-Where-Are-They-Now-Promo.jpg?crop=0px%2C0px%2C2200px%2C1244px&resize=600%2C338&quality=40&strip=all)
‘The Big Bang Theory’ Cast: Where Are They Now?
![Hope and Faith Cast Where Are They Now](/wp-content/uploads/2024/01/Hope-and-Faith-Cast-Where-Are-They-Now-1.jpg?crop=0px%2C18px%2C1530px%2C864px&resize=600%2C338&quality=86&strip=all)
'Hope and Faith' Cast: Where Are They Now?
![The Big Bang Theory Cast Dating History Feature](/wp-content/uploads/2021/09/The-Big-Bang-Theory-Cast-Dating-History-Feature.jpg?crop=0px%2C4px%2C2000px%2C1131px&resize=600%2C338&quality=40&strip=all)
‘The Big Bang Theory’ Cast’s Dating Histories Through the Years
![Johnny Galecki Quietly Married Morgan Galecki Welcomed Baby Girl After Moving to Nashville in 2020 840](/wp-content/uploads/2024/02/Johnny-Galecki-Quietly-Married-Morgan-Galecki-Welcomed-Baby-Girl-After-Moving-to-Nashville-in-2020-840.jpg?crop=0px%2C0px%2C2000px%2C1131px&resize=600%2C338&quality=86&strip=all)
Johnny Galecki Reveals He Is Married, Welcomed Baby Girl With Wife Morgan
![Christmas Movie Kids Then and Now: See What the Child Actors From ‘Home Alone,’ ‘The Santa Clause’ and More Are Up To](/wp-content/uploads/2023/12/Christmas-Movie-Kids-Then-and-Now-See-What-the-Child-Actors-From-‘Home-Alone-‘The-Santa-Clause-and-More-Are-Up-To003.jpg?crop=184px%2C0px%2C1754px%2C990px&resize=600%2C338&quality=86&strip=all)
Christmas Movie Kids Then and Now: 'Home Alone,’ ‘The Santa Clause,’ More
![NFL Star Patrick Mahomes and Wife Brittany Announce Sex of Baby No. 2 — With Squirt Gun Reveal](/wp-content/uploads/2022/06/NFL-Star-Patrick-Mahomes-and-Wife-Brittany-Announce-Sex-of-Baby-Number-Two-With-Squirt-Gun-Reveal-02.jpg?crop=82px%2C43px%2C1707px%2C965px&resize=600%2C338&quality=40&strip=all)
Celeb Parents' Most Creative Gender Reveals of All Time: Photos
![Kaley Cuoco Dating History Johnny Galecki Karl Cook More](/wp-content/uploads/2022/04/Kaley-Cuoco-Dating-History-Johnny-Galecki-Karl-Cook-More-0001.jpg?crop=0px%2C0px%2C2000px%2C1131px&resize=600%2C338&quality=40&strip=all)
Kaley Cuoco’s Dating History: Johnny Galecki, Karl Cook and More
![Celebrity Exes Who Worked Together After the Breakup](/wp-content/uploads/2018/08/exes-work-together.jpg?crop=0px%2C2px%2C2000px%2C1131px&resize=600%2C338&quality=40&strip=all)
Celebrity Exes Who Worked Together After the Breakup
!['The Big Bang Theory' Cast Felt 'Blindsided' by Jim Parsons' Exit- 'It Could Have Been Handled Better' 07](/wp-content/uploads/2022/10/The-Big-Bang-Theory-Cast-Felt-Blindsided-by-Jim-Parsons-Exit-It-Could-Have-Been-Handled-Better-07.jpg?w=600&h=338&crop=1&quality=40&strip=all)
'Big Bang Theory' Cast Recalls Feeling 'Blindsided' by Jim Parsons' Exit
![Big Bang Theory Recap Johnny Galecki Kaley Cuoco](/wp-content/uploads/2019/05/Big-Bang-Theory-Recap-Johnny-Galecki-Kaley-Cuoco.jpg?crop=0px%2C14px%2C1200px%2C679px&resize=600%2C338&quality=86&strip=all)
'The Big Bang Theory' Book Revelations: Kaley and Johnny's Romance, More
![Johnny Galecki and Kaley Cuoco timeline](/wp-content/uploads/2020/12/Johnny-Galecki-and-Kaley-Cuoco-timeline.jpg?crop=59px%2C0px%2C1532px%2C867px&resize=600%2C338&quality=40&strip=all)
Kaley Cuoco and Ex Johnny Galecki's Friendship Through the Years
![Kaley Cuoco and Johny Galecki](/wp-content/uploads/2022/10/Kaley-Cuoco-and-Johnny-Galecki-1.jpg?crop=68px%2C33px%2C1415px%2C799px&resize=600%2C338&quality=55&strip=all)
Kaley Cuoco: Johnny Galecki Worried Romance Would Ruin ‘Big Bang Theory’
![Roseanne Reboot](/wp-content/uploads/2018/03/roseannereboot.jpg?crop=244px%2C236px%2C1387px%2C784px&resize=600%2C338&quality=40&strip=all)
‘Roseanne’ Cast: Then and Now
!['I Know What You Did Last Summer' Cast: Where Are They Now? Jennifer Love Hewitt and More](/wp-content/uploads/2021/10/I-Know-What-You-Did-Last-Summer-Cast-Where-Are-They-Now-Jennifer-Love-Hewitt-and-More10.jpg?crop=0px%2C82px%2C1340px%2C758px&resize=600%2C338&quality=40&strip=all)
'I Know What You Did Last Summer' Cast: Where Are They Now?
![Everything Kaley Cuoco Has Said About Love Heartbreak Divorce](/wp-content/uploads/2022/04/Everything-Kaley-Cuoco-Has-Said-About-Love-Heartbreak-Divorce-005.jpg?crop=0px%2C0px%2C2000px%2C1131px&resize=600%2C338&quality=86&strip=all)
Figuring It Out! Kaley Cuoco's Best Quotes About Love, Heartbreak, Divorce
![Matt James and Steve Kazee Dudes Showing Off Their Beards](/wp-content/uploads/2022/03/dudes-showing-off-their-new-beards-pics.jpg?crop=0px%2C0px%2C2000px%2C1131px&resize=600%2C338&quality=86&strip=all)
Matt James, Steve Kazee and More Dudes Showing Off Their Beards
![OMG! Johnny Galecki Calls Ex Kaley Cuoco ‘Mooks’ in Adorable Birthday Tribute](/wp-content/uploads/2021/12/OMG-Johnny-Galecki-Calls-Ex-Kaley-Cuoco-Mooks-Adorable-Birthday-Tribute-001.jpg?crop=0px%2C0px%2C2000px%2C1131px&resize=600%2C338&quality=40&strip=all)
Aw! Johnny Galecki Calls Ex Kaley Cuoco ‘Mooks’ in Adorable Birthday Tribute
![Mayim Bialik: Why I ‘Worked So Well’ With Jim Parsons on ‘Big Bang Theory’](/wp-content/uploads/2021/04/Mayim-Bialik-On-Why-She-Worked-So-Well-With-Jim-Parsons-On-The-Big-Bang-Theory-Promo.jpg?crop=0px%2C24px%2C1683px%2C950px&resize=600%2C338&quality=86&strip=all)
Mayim Bialik: Why I ‘Worked So Well’ With Jim Parsons on ‘Big Bang Theory’
![Johnny Galecki Jokes About Ex Kaley Cuoco Valentine Day Tribute to Husband Karl Cook](/wp-content/uploads/2021/02/Johnny-Galecki-Jokes-About-Ex-Kaley-Cuoco-Valentine-Day-Tribute-to-Husband-Karl-Cook.jpg?crop=0px%2C0px%2C2000px%2C1131px&resize=600%2C338&quality=40&strip=all)
Johnny Galecki Teases Ex Kaley Cuoco Over Valentine’s Day Post to Husband
![Johnny Galecki Gushes Over Ex Kaley Cuoco After Alaina Meyer Split p](/wp-content/uploads/2020/12/Johnny-Galecki-Gushes-Over-Ex-Kaley-Cuoco-After-Alaina-Meyer-Split-p.jpg?crop=49px%2C0px%2C1682px%2C950px&resize=600%2C338&quality=40&strip=all)