The Big Bang Theory The Tallest Shortest Actors In The CastJonny amour Galecki stature is nearly 165 centimeters. Johnny is at a average height. Although some may consider him not to be excessively vertically gifted, his skills is boundless. Regardless his vertical dimension, he is admired in the industry for his acting skills. Johnny has established time and again that one's stature doesn't dictate success when it comes to achieving success.