Autographs of Johnny Galecki
John Mark Galecki (born April 30, 1975) is an American actor. In television, he played Leonard Hofstadter on The Big Bang Theory (2007–2019) and David Healy in Roseanne (1992–1997; 2018) 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).
He was one of the highest paid television actors in the world, with his role in The Big Bang Theory earning him approximately US$900,000 per episode between 2017 and 2019. In 2018, Galecki was estimated to be the world's second highest-paid male TV actor by Forbes—behind only his The Big Bang Theory co-star Jim Parsons—earning $25 million. The accolades he has received include a Satellite Award, alongside nominations for a Primetime Emmy Award, Golden Globe Award, and six Screen Actors Guild Awards.
Galecki was born in Bree, Limburg, Belgium, to American parents of Polish, Irish, and Italian descent. His mother, Mary Louise "Mary Lou" Noon, was a mortgage consultant, and his father, Richard Galecki, was a member of the U.S. Air Force stationed in Belgium and worked as a rehabilitation teacher. Galecki is the eldest of three children with a sister, Allison, and a brother, Nick, who he describes as a "mechanical genius" in the automotive industry. Galecki grew up in Oak Park, Illinois. He dropped out of school after 8th grade, attending high school for only one day.
More about Johnny Galecki Wikipedia
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Traded items with a signature of Johnny Galecki
The most expensive item with a signature of Johnny Galecki (Johnny Galecki 2012 Cryptozoic The Big Bang Theory Seasons 3&4 Autograph Wardrob) was sold in April 2025 for £2,091.70 while the cheapest item (Genuine 10x8 Signed Photo of Johnny Galecki+ COA) found a new owner for £0.99 in March 2019. The month with the most items sold (2) was February 2013 with an average selling price of £6.74 for an autographed item of Johnny Galecki. Sold items reached their highest average selling price in September 2025 with £178.16 and the month that saw the lowest prices with £0.99 was March 2019. In average, an autographed item from Johnny Galecki is worth £15.99.
Most recently, these items with a signature of Johnny Galecki were sold on eBay - click here for more items.
| Picture | Item Title | Price | Store |
 | Jim Parsons Kaley Cuoco Johnny Galecki The Big Bang Theory 16 X 12 Signed Cards | £193.76 |  |
| Jim Parsons Kaley Cuoco Johnny Galecki The Big Bang Theory 16 X 12 Signed Cards | £193.76 | |
| JOHNNY GALECKI SIGNED BIG BANG THEORY PHOTO (2) ALSO SWAU | £69.99 | |
| JOHNNY GALECKI SIGNED BIG BANG THEORY PHOTO (2) ALSO SWAU | £69.99 | |
| JOHNNY GALECKI SIGNED BIG BANG THEORY PHOTO UACC REG 242 (1) ALSO BECKETT COA | £60.00 | |
| JOHNNY GALECKI SIGNED BIG BANG THEORY PHOTO UACC REG 242 (1) ALSO BECKETT COA | £60.00 | |
| JOHNNY GALECKI SIGNED BIG BANG THEORY PHOTO UACC REG 242 (10) | £59.99 | |
| JOHNNY GALECKI SIGNED BIG BANG THEORY PHOTO UACC REG 242 (10) | £59.99 | |
| JOHNNY GALECKI SIGNED BIG BANG THEORY PHOTO UACC REG 242 muppets | £39.99 | |
| JOHNNY GALECKI SIGNED BIG BANG THEORY PHOTO UACC REG 242 muppets | £39.99 | |
| Kaley Cuoco Johnny Galecki The Big Bang Theory 16 X 12 Signed Cards | £162.56 | |
| Kaley Cuoco Johnny Galecki The Big Bang Theory 16 X 12 Signed Cards | £162.56 | |
| TBBT JOHNNY GALECKI #1 10X8 PRE PRINTED (SIGNED) LAB QUALITY PHOTO - FREE DEL | £3.54 | |
| TBBT JOHNNY GALECKI #2 10X8 PRE PRINTED (SIGNED) LAB QUALITY PHOTO - FREE DEL | £3.54 | |
| TBBT JOHNNY GALECKI #2 10X8 PRE PRINTED (SIGNED) LAB QUALITY PHOTO - FREE DEL | £3.54 | |
