The Big Bang Theory season 5
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The fifth season of the American television sitcom The Big Bang Theory aired on CBS from September 22, 2011 to May 10, 2012.
DVD cover art
Leonard Hofstadter
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Leonard Leakey Hofstadter, Ph.D. is a fictional character portrayed by Johnny Galecki and one of the protagonists in the 2007–2019 CBS sitcom, The Big Bang Theory. Leonard is an experimental physicist
Johnny Galecki as Dr. Leonard Hofstadter
Kaley Cuoco (who portrays Penny) and Johnny Galecki at PaleyFest 2013