Johnny Galecki

Johnny Galecki Headshot

Actor

Birth Date: April 30, 1975

Age: 48 years old

Birth Place: Bree, Belgium

Partners: Sara Gilbert, Kaley Cuoco

Actor Johnny Galecki came to prominence on television on the classic sitcom "Roseanne," only to reinvent himself years later as one of the stars of another wildly successful sitcom. After early roles in films like "A Night in the Life of Jimmy Reardon" (1988) and "National Lampoon's Christmas Vacation" (1989), the talented teen actor gained nationwide recognition as David Healy, boyfriend to the Conners' cynical daughter, Darlene (Sara Gilbert), on the sitcom phenomenon "Roseanne" (ABC, 1988-1997; 2018- ). Determined not to suffer the fate endured by so many teen TV stars, Galecki continued to hone his craft after "Roseanne" ended, taking on roles in such indie films as "Suicide Kings" (1997) and "The Opposite of Sex" (1998), in addition to several critically lauded endeavors in live theater. A decade later, he returned triumphant to weekly television when he was cast as loveable geek Dr. Leonard Hofstadter on the smash hit sitcom "The Big Bang Theory" (CBS, 2007- ), co-starring newcomers Jim Parsons and Kaley Cuoco. An intelligent performer who made equally thoughtful career choices, Galecki's patience and perseverance paid off handsomely.

Credits

The Big Bang Theory: Couple Goals

Actor
Leonard Hofstadter
Show
2019

The Big Bang Theory: Your Takeover

Actor
Leonard Hofstadter
Show
2019

Unraveling the Mystery: A Big Bang Farewell

Host
Show
2019

A Dog's JourneyStream

Actor
Henry
Movie
2019
51%

SciJinksStream

Executive Producer
Series
2018

SciJinksStream

Host
Series
2018

Living Biblically

Executive Producer
Series
2018
18%

Live with Kelly and Ryan

Guest
Talk
2017

Rings

Actor
Gabriel
Movie
2017

Must See TV: An All-Star Tribute to James Burrows

Guest
Show
2016

The Master Cleanse

Actor
Paul Berger
Movie
2016

The Master Cleanse

Executive Producer
Movie
2016

The Late Show With Stephen ColbertStream

Guest
Talk
2015

The Late Late Show With James CordenStream

Guest
Talk
2015

Extra Big Bang

Actor
Show
2014

The Big Bang Theory: Cast and Creators Live at PALEYFEST

Guest
Show
2013

The Big Bang Theory: Extras

Actor
Show
2013

CBGBStream

Actor
Terry Ork
Movie
2013
7%

Live! With Kelly and Michael

Guest
Talk
2012

Larry King NowStream

Guest
Talk
2012

CBS This Morning

Guest
Show
2012

LIVE with Kelly

Actor
Talk
2011

CBS Fall Preview

Host
Show
2011

In TimeStream

Actor
Borel
Movie
2011
37%

ConanStream

Guest
Talk
2010

The Talk

Guest
Talk
2010

Table for Three

Actor
Ted
Movie
2009

The Bonnie Hunt Show

Guest
Talk
2008

HancockStream

Actor
Jeremy
Movie
2008
42%

The Big Bang TheoryStream

Actor
Leonard Hofstadter
Series
2007
81%

The Big Bang TheoryStream

Host
Series
2007
81%

Rachael Ray ShowStream

Guest
Talk
2006

etalk

Guest
Show
2006

My Name Is EarlStream

Guest Star
Scott
Series
2005
82%

American DadStream

Guest Voice
Arnie
Series
2005

The Late Late Show With Craig Ferguson

Guest
Talk
2005

EntourageStream

Guest Star
Johnny Galecki
Series
2004
65%

Tavis Smiley

Guest
Talk
2004

Chrystal

Actor
Barry
Movie
2004

Hope & Faith

Guest Star
Show
2003

The Ellen DeGeneres Show

Guest
Talk
2003

Jimmy Kimmel Live!Stream

Guest
Talk
2003

Bookies

Actor
Jude
Movie
2003

Last Call With Carson Daly

Guest
Talk
2002

Live With Regis and Kelly

Guest
Show
2001

Vanilla SkyStream

Actor
Peter Brown
Movie
2001
43%

BounceStream

Actor
Seth
Movie
2000
53%

Playing Mona Lisa

Actor
Arthur
Movie
2000

The Early Show

Guest
Show
1999

Norm

Guest Star
Series
1999
67%

Family Guy

Guest Voice
Leonard Hofstadter
Show
1999

Family GuyStream

Guest Voice
Leonard Hofstadter
Series
1999

Morgan's Ferry

Actor
Darcy
Movie
1999

The Opposite of SexStream

Actor
Jason Bock
Movie
1998
81%

The View

Guest
Talk
1997

BeanStream

Actor
Stingo Wheelie
Movie
1997
43%

Suicide Kings

Actor
Ira Reder
Movie
1997

I Know What You Did Last SummerStream

Actor
Max Neurick
Movie
1997
45%

Murder at My Door

Actor
Teddy McNair
Movie
1996

La Muerte Toca Mi Puerta

Actor
Movie
1996

Trapped and Deceived

Actor
Marty
Movie
1994

Without Consent

Actor
Marty
Movie
1994

Late Show With David Letterman

Guest
Talk
1993

A Family Torn Apart

Actor
Daniel Hannigan
Movie
1993

Billy

Actor
Show
1992

Backfield in Motion

Actor
Tim Seavers
Movie
1991

American Dreamer

Actor
Show
1990

In Defense of a Married Man

Actor
Eric
Movie
1990

National Lampoon's Christmas VacationStream

Actor
Russell 'Rusty' Griswold
Movie
1989
70%

RoseanneStream

Actor
David Healy
Series
1988
76%

RoseanneStream

Guest Star
David Healy
Series
1988
76%

Murder Ordained

Actor
Doug Rule
Movie
1987

Sesame StreetStream

Guest Star
Series
1969

News aboutJohnny Galecki

Jay R. Ferguson and Ames McNamara in The Conners

Did ‘The Conners’ Say Goodbye to Johnny Galecki’s David for Good in Season 5 Finale?

'The Big Bang Theory' cast
Q&A

‘The Big Bang Theory’ Tell-All: Author Jessica Radloff Talks the Book’s Juiciest Bits

2011 Emmy Winners Quiz

How Well Do You Remember the 2011 Emmy Winners?

The Big Bang Theory Jim Parsons Kaley Cuoco Johnny Galecki

Why You Should Rewatch ‘The Big Bang Theory’s Series Premiere

The Big Bang Theory cast

‘The Big Bang Theory’: Catch Up With the Cast & Their Latest Roles

Young Sheldon - Zoe Perry, Iain Armitage, Annie Potts
Spoiler Alert

‘Young Sheldon’: How ‘Big Bang Theory’s [Spoiler] Ended Up in Season 4 Premiere

Kaley Cuoco - Big Bang Theory series finale
Exclusive

Looking Back at ‘The Big Bang Theory’ Series Finale One Year Later (PHOTOS)

The Change Constant/The Stockholm Syndrome
Spoiler Alert

‘Big Bang Theory’ Bosses on That Jaw-Dropping Series Finale Guest Star and More

THE BIG BANG THEORY
Finale

In Their Own Words: The ‘Big Bang Theory’ Cast on the Emotional Ending

The Plagiarism Schism
Finale

Prepare for an Emotional, Surprise-Filled ‘Big Bang Theory’ Series Finale

The Cast Of

‘The Big Bang Theory’ Cast Honored With Historic Handprint Ceremony (PHOTOS)

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See the ‘Big Bang Theory’ Cast at the Emotional Final Episode Taping (PHOTOS)

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CBS Announces ‘The Big Bang Theory’ Retrospective Following the Series Finale

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Exclusive

Johnny Galecki & Kaley Cuoco Get Silly to Celebrate the ‘Big Bang Theory’s Final Episodes (PHOTOS)

The Big Bang Theory - Johnny Galecki and Kaley Cuoco
Exclusive

Behind the Scenes of the ‘Big Bang Theory’ Cover Shoot With Kaley Cuoco & Johnny Galecki (VIDEO)

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Preview

‘The Big Bang Theory’ Cast Reflects on Their 12-Year Run Ahead of the Big Farewell

The Big Bang Theory - Cast

‘The Big Bang Theory’ Cast Celebrates Stage Dedication at Warner Brothers Studios

The Conners – Jay R. Ferguson and Sara Gilbert

Did ‘The Conners’ Finale Set Things Up for a Second Season?

JOHN GOODMAN, SARA GILBERT
Exclusive

Go Behind the Scenes of ‘The Conners’ Season Finale With the Cast

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How ‘The Big Bang Theory’ Cast Wants the Show to End

THE CONNERS - ABC's

‘The Conners’: All of the Series’ Guest Stars (So Far) (PHOTOS)

Juliette Lewis on The Conners with Johnny Galecki and Sara Gilbert

Griswold Reunion! Juliette Lewis & Johnny Galecki to Guest Star on ‘The Conners’ (PHOTO)

THE BIG BANG THEORY -
Preview

‘Big Bang Theory’ EP on Amy & Sheldon’s Marriage, Penny & Leonard’s Baby Plans

Preview

What You Need to Know About the ‘Big Bang Theory’ Final Season Premiere

big-bang-theory-wedding

Bazinga! ‘The Big Bang Theory’ Signing Off in 2019 After 12 Seasons

The Big Bang Theory

‘The Big Bang Theory’: Go Behind the Scenes With the Cast on Set (PHOTOS)

big-bang-theory-wedding

CBS Teases ‘The Big Bang Theory’ Season 12 Won’t Be Its Last

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20 Best TV Star Throwbacks From Social Media’s #OldHeadshot Day (PHOTOS)

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Did ‘Roseanne’ Do David Justice With Johnny Galecki’s Long-Awaited Return? (POLL)

ROSEANNE

5 Memorable Darlene & David Moments From the Original ‘Roseanne’ (VIDEO)

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See Johnny Galecki’s Return as David in ‘Roseanne’ Sneak Peek (VIDEO)

ROSEANNE BARR, JAYDEN REY, MICHAEL FISHMAN, SARA GILBERT, LAURIE METCALF, JOHN GOODMAN

The ‘Roseanne’ Cast Discusses Pushing the Limits of Storytelling in the Revival

living-biblically
Preview

‘Living Biblically’ Cast Talks Making Faith Funny, Not Making Fun of Faith (VIDEO)

Big Bang Theory - Bill Gates

‘The Big Bang Theory’: Bill Gates Signs on as Guest Star

Johnny Galecki attends The 23rd Annual Critics' Choice Awards

Johnny Galecki to Host and Produce Discovery’s New ‘SciJinks’ Prank Show

RINGS LA Fan Screening

Johnny Galecki Shares New Photo From ‘Roseanne’ Set

ROSEANNE - LAURIE METCAF, ROSEANNE BARR, MICHAEL FISHMAN, JAYDEN REY, BRUCE HELFORD, WHITNEY CUMMINGS, JOHN GOODMAN

First Look at the ‘Roseanne’ Revival: ABC Releases Behind-the-Scenes Cast Photo

The Big Bang Theory

‘The Big Bang Theory’: Penny and Leonard Renew Their Vows in the Season 10 Premiere

The Big Bang Theory - Alfred (Judd Hirsch), Leonard Hofstadter (Johnny Galecki), and Beverly (Christine Baranski)

‘The Big Bang Theory’ Welcomes Judd Hirsch for the Season 9 Finale

PaleyFest 2016 The Big Bang Theory

‘The Big Bang Theory’ Casts Judd Hirsch as Leonard’s Father

The Big Bang Theory, Mayim Bialik, Jim Parsons

Inside ‘The Big Bang Theory’s 200th Episode Birthday Bash

Big Bang Theory - Kaley Cuoco and Johnny Galecki

‘The Big Bang Theory’ Premiere: Showrunner Steve Molaro Dissects Nuptials and Breakups

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Will Penny and Leonard Marry on ‘The Big Bang Theory’? Johnny Galecki and Kaley Cuoco-Sweeting on What’s Next

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Behind the “Bazinga!” Moments on ‘The Big Bang Theory’ (PHOTOS)

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The ‘Big Bang Theory’ Cast Shares Their Comic-Con Memories