From the pictures below, can you find the cartoon character?

[![enter image description here](https://i.stack.imgur.com/EgWjt.png)](https://i.stack.imgur.com/EgWjt.png)
[![enter image description here](https://i.stack.imgur.com/rpvCl.png)](https://i.stack.imgur.com/rpvCl.png)
[![enter image description here](https://i.stack.imgur.com/81IHG.png)](https://i.stack.imgur.com/81IHG.png)

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> EDIT: Edited the 3rd picture for clarity
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HINT 1

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>  A scientist
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HINT 2

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>  Changing from old to new - one word 
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HINT 3

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>  Even the highlighted words lead to the answer!!!
>  $$$$
> ![enter image description here](https://i.stack.imgur.com/Y511H.png)
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