
Biography
John Mark Galecki is an American actor. On television, he played Leonard Hofstadter on The Big Bang Theory (2007–2019) and David Healy in Roseanne and The Conners (2018–2019). Galecki also appeared in the films Prancer (1989), National Lampoon's Christmas Vacation (1989), Suicide Kings (1997), I Know What You Did Last Summer (1997), Bookies (2003), In Time (2011), and Rings (2017).
Source: Wikipedia · CC BY-SA
Awards & recognition
- Theatre World Award · 2007
Filmography41 titles

Batman Beyond

A Dog's Journey

The Big Bang Theory

My Name Is Earl

Entourage

Family Guy

Conan

Without Consent

National Lampoon's Christmas Vacation

The Norm Show

In Time

American Dad!

The Conners

Vanilla Sky

Roseanne

Suicide Kings

I'm Chevy Chase and You're Not

Bean

Lip Sync Battle

Hancock

Bookies

CBGB

The Opposite of Sex

Blossom

The Late Show with Stephen Colbert

Morgan's Ferry

Playing Mona Lisa

I Know What You Did Last Summer

Prancer

Bounce

Happy Endings

Backfield in Motion

The Ellen DeGeneres Show

The Cleanse

Rings

A Night in the Life of Jimmy Reardon

Sudden Fury

In Defense of a Married Man

Table for Three

Murder at My Door

SciJinks