Who plays the characters in the Gay Julian Franchise?

Who plays the characters in the "Gay Julian" Franchise AND Blobclash universe.
Click here to see these characters.
Gay Julian is played by Joey Graceffa or someone who looks like him.
Billa Jones is played by Luke Conard or someone who looks like him.
Sebastian Gatewell is played by Sawyer Hartman or someone who looks like him.
Syed Churchill is played by Shane Dawson or someone who looks like him.
"Captain" Jack Harkness is played by John Barrowman
Dick Mccool is played by Jim Chapman
Christopher Tottington is played by Colin Firth
Andy Wallace is played by Michael Caine
Franco Frances is played by James Franco
David Flints is played by David Tennant/Mcdonald
Mick Profio is played by Mike Myers
Will Keyes is played by Johnny Depp
Gabe Graf is played by Gabe Newell
Troy Crompton is played by Andrew Garfield
Barry Hanks is played by Harrison Ford
Mini Me is played by Verne Troyer
Rory Lovejoy is played by Louie Spence
Ben Archer is played by David Walliams
Gayathon is a blue elite from the video game, Halo
Shagaholic is a red elite from the video game, Halo
Owen Harper is played by Burn Gorman
Ianto Jones is played by Gareth David-Lloyd
Trevor Burton is a character from the video game, Sims .
Bobby Spink is played by Tyler Oakley
Matthew Fisher is played by Dan Howell
Sylvester Westfall is played by Phil Lester
Ian Cardy is played by Daniel Radcliffe
Bert Ransom is played by Rylan Clark
Archie the Inventor is played by Miles Jupp
Yanis Marshall is played by Yanis Marshall
Arnaud Boursain is played by Arnaud Boursain
Mehdi Mamine is played by Mehdi Mamine
Grammar Git is played by a random nerd.
Scaryoldman is played by Edarem.
The Fat Troll is played by someone unknown.
Monkeyman is played by someone unknown.
==Celebrities:==
*Boris Johnson
*David Cameron
*Harry Styles
*Simon Cowell
*Donald Trump