About Johnny Galecki

Johnny Galecki is a Belgian-born American actor, best known for his roles as David Healy in Roseanne, Rusty Griswold in National Lampoon's Christmas Vacation, and as Leonard Hofstadter in The Big Bang Theory.

Cast

Bean

Stingo Wheelie

I Know What You Did Last Summer

Max Neurick

National Lampoon's Christmas Vacation

Russell 'Rusty' Griswold

Hancock

Jeremy

The Opposite of Sex

Jason Bock

Bookies

Jude

A Night in the Life of Jimmy Reardon

Toby Reardon

In Time

Borel

Morgan's Ferry

Darcy

Playing Mona Lisa

Arthur

CBGB

Terry Ork

Murder at My Door

Teddy McNair

Vanilla Sky

Peter Brown

Backfield in Motion

Tim Seavers

Sudden Fury

Daniel Hannigan

The Cleanse

Paul Berger

Bounce

Seth

Rings

Gabriel Brown

Murder Ordained

Doug Rule

Must See TV: An All Star Tribute to James Burrows

Self

Without Consent

Marty

Suicide Kings

Ira Reder

Prancer

Billy Quinn

Happy Endings

Miles (uncredited)

Chrystal

Barry

In Defense of a Married Man

Eric

The Little Dog Laughed

Alex

A Dog's Journey

Henry Montgomery

Table for Three

Ted

Crew

The Cleanse

Producer