Outwardly, however, "Howard" hardly changed. The small and skinny scientist always wore tight trousers; large, noticeable belt buckles; turtlenecks; and generally very bright to bright colors. However, Simon Helberg has changed so much himself that he is hardly recognizable. In new photos of the actor, the difference is stunning. During his time in The Big Bang Theory, Simon Helberg wore an unmistakable potted haircut throughout his role as "Howard".

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Is That Really "Howard"? The Big Bang Theory Star Has Changed A Lot!

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Is That Really "Howard"? 'The Big Bang Theory' Star Has Changed A Lot!