Film director, live action or animation.
Astronomer. Turns out I suck at physics and calculus, though. Great with languages, and I ended up being a translator, so I call it even.
Video game designer. It turns out making video games and playing video games are very very different. Whoddathunkit?
Supreme God-Emperor of the Multiverse… why settle for less?
Wow. Eight-year-old you got cynical.
Astrophycisist
Little kid- dinosaur hunter
Middle kid- detective or spy
Older kid- gonzo photojournalist
I wanted to be a Vet (until I realized the whole death component).
Next, I am pretty sure Pop Star was high up on the list.
Lastly, I decided I could be a Fashion Designer after I devised Barbie dresses out of socks.
Ah, dreams.
Up until the time I was about 11 years old, if an adult asked me what I wanted to be when I grew up, I would always say whatever they were (doctor, teacher, etc.). Such a little suck-up… 
I decided I wanted to be a writer after A) reading The Black Cauldron and B) discovering Dungeons and Dragons around 6th grade or so. As I got older and learned more about the industry, I decided I needed to have a back-up plan.
In college, I chose psychology, then failed to go to grad school, pretty much condemning myself to a degree I couldn’t really use. I’ve spent most of my life since college in office jobs.
My writing skills did get me a full-ride scholarship for my bachelor’s degree, so I guess they weren’t entirely useless. 
I do still write, but not like I used to. Right now I really only have time for journaling. Hopefully when I feel better I will get back to my stories. 
Around 10 or 11 I wanted to be the projectionist at the movie theater. I even researched the job at my guidance counselor’s office in my 11th grade. They had all these books with salaries, projected future of various jobs and so on.
Since college my dream was to own an old fashioned country store with attached living quarters or a house nexr door to the store. My college gf’s parents owned a store like that and I loved visiting it. Old fashioned coke box, racks of candy, chips, and other items. Their home was behind and to the left of the store. Had we married, I’d probably own that store today and be running it.
I still dream of owning an authentic country store like that. Basically unchanged since the 1950’s. They are often the lifeline of rural areas. Sometimes even serving as the local post office & gossip center. Maybe when I’m closer to 60 I’ll start looking into buying a country store with its inventory.