Phineas is an old man with big- and often unrealistic ideas. He is a very larger than life guy, and can flip from being mellow to rambling excitedly about some new project of his. People around him tend to write him off as being a kooky old man, which is partially true, however he pays it no mind. 

For this character I’m looking for someone who can play an older person, while still being able to showcase a wide range of emotions. As for sound, a good reference would be a mix between Heimerdinger (Arcane) and Maurice (Beauty and The Beast 1991).