Quite a number of people actually.
Like above, if counted Voice actors:
Vic Mignogna
Brian Beacock
Amy Birnbaum
Jonathan Ross
Milton Lawrence
Sean Schemmel
Dave Wittenberg
Christopher Smith
Janet Varney
Meagan Smith
(can't remember who else atm lol)
At the same Con I remember
Devon Murray who played Seamus Finnegan in Harry Potter.
I'm so excited to meet
Joshua Seth (who did Tai in Digimon),
Matthew Mercer and
Veronica Taylor this July as well as famous cosplayers
Kamui and
Monica Lee :D
Famous Youtubers I've met quite a lot as well since I went to Vidcon in 2012, but there was a lot of just waves of hi (
Dan & Phil, Connor Franta etc.) or "im just going to watch you from afar because I'm too shy to actually come up to you xD).
I did man up and talk to others such as
Dave Days and there were a lot of other famous youtubers I met there, but it was funny because I didn't know who they actually were at the time - I did the cinamon challenge on YouNow right after
FoodforLouis but I had know idea who he was at the time xD
While I was in LA that year, I also attended a summer program at the New York film School's LA location and became good friends with
Bex T-K who starred in The Killing and Sin on Arrow. Awesome friend, but I haven't seen her since 2012 which is kinda sad but I'm glad she's been getting out there and successful :)
During breaks in the program, our group often went to Citywalk and one of the times we did, we saw a bunch of younger Disney channel stars/ other younger teen stars just chilling:
Btw have no idea who the two guys on the right were, but they're from an American show I didn't know (but my friends did. The dude on the far left is Dylan Riley Snyder who played Milton on Kickin' it.
Also I know a few people who's parents are famous people. Like the fact Peter Jackson's daughter went to the same school as me and then I didn't actually realise until after I had graduated that she was - haha I did talk to her a few times and took photos of her with me being the school photographer and everything.
As mentioned when I went to New York Film Academy I became friends with the composer of Phineas and Ferb's son who is an amazingly talented filmmaker and
Lisa Kudrow's son, but I never got to know him that well. We did end up meeting her on the last day of the program which was pretty cool.