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Robin Scherbatsky (Cobie Smulders) — Aged finer than wine over 9 years on How I Met Your Mother.
Our favorite movie and TV actors age right before our eyes. Not only do their on screen personas battle all sorts of incredibly realistic life events, but off the screen, stars lead hectic and crazy lives. Still, its remarkable how little some have changed over the years in the same role and how some seem to get even better with age (see above).