This is a list of actors and voice actors that have portrayed or voiced characters in All Star Smashers. They are listed alphabetically by last name.
(†) indicates this person is deceased.
A[]
- Aaronitmar - Himself
- Tim Allen - Buzz Lightyear
B[]
- Christian Bale - Donny Dlaven (Shared with Bizarre Jokester and Windham Rotunda)
- Chad Bergstrom - Chadtronic
- Mark Berry - Finn Palmer (Shared with Jack Mayhew, Himself and Arin Hanson)
- Simon Bird - Ed
- Stephane Blanchette - Admiral Bubbles
- Devon Bostick - Rodrick Heffley
- Karan Brar - Chirag Gupta
- Brian - Danny Robinson, Elephant, Warren Cook
- Nicholas Briggs - Dumb Daleks (Shared with Jack Mayhew)
- Neil Buchanan - Himself
- Steve Burns - Himself
C[]
- Robert Capron - Rowley Jefferson
- Barry Chuckle (†) - Himself
- Paul Chuckle - Himself
- Aidan Cook - Rude Ralph
- Simon Cowell - Himself
D[]
- Dantavius - Himself
- Keith David - Chief Broadbeak
- Guillaume Delaunay - Kisko
- Teala Dunn - Turtle Tuck
E[]
- Eric - Himself, Go!Boris
- Wynne Evans - Gio Compario
F[]
- Melissa Fahn - Neptune/Purple Heart (Shared with Rei Tanaka), Big Nep (Also shared with Rei Tanaka)
- Connor Fielding - Manny Heffley (Shared with Owen Fielding)
- Owen Fielding - Manny Heffley (Shared with Connor Fielding)
- Sean Foley - Renard Depardieu
- French Fry - Himself
G[]
- Evil Genius - Go!Caillou
- Caitlin Glass - 5pb. (Shared with nao and Mela Lee)
- Zachary Gordon - Greg Heffley
- Toby Grady - Himself
H[]
- Arin Hanson - Finn Palmer (Shared with Jack Mayhew, Himself and Mark Berry)
- Woody Harrelson - Jake
- Rachael Harris - Susan Heffley
- Kevin Hart - George Beard
- Tamsin Heatley - Henry's Mum
- Ed Helms - Captain Underpants, Captain Blunderpants
- Kate Higgins - IF (Shared with Kana Ueda and Megan Shipman)
- Harry Hill - Himself, Professor Branestawm
J[]
- Joey - Memy9909
- Jason Johnson - Cool Cat
- Traci Paige Johnson - Blue
- Bizarre Jokester - Donny Dlaven (Shared with Windham Rotunda and Christian Bale)
- David Joyner - Barney the Dinosaur (Shared with Bob West)
K[]
- Mika Kanai - Histoire (Shared with Stephanie Sheh), Croire (Shared with Cristina Vee)
- Eduard Khil (†) - Jared Bruceton (Shared with Jack Mayhew)
- Moltern Kirby - Herself
- Nick Kroll - Professor Poopypants
L[]
- Shia LaBeouf - Himself
- Amanda Lamb - Herself
- Danica Lee - Ming-Ming Duckling
- Mela Lee - 5pb. (Shared with nao and Caitlin Glass)
- Cherami Leigh - Million Arthur
- Leila - Herself
- Andrea Libman - Fluttershy
- Victoria Lowe - Skylar
- Matt Lucas - Otto Hill
M[]
- Chris Marlow - Great Mighty Poo
- Steve Marsh - Ben
- Jack Mayhew - Himself, Brad Till/Angus (Final Smash only; Shared with himself), Oscar the White Tiger, Ollie the Snow Leopard, Amanda the Panda, Harry Bradshaw, Matthew Whitehead, Talking Joe, Pete the Cheerful Bus Driver (Shared with himself), Hilary Sherlock, Edward Yui (Shared with himself), Finn Palmer (Shared with himself, Mark Berry and Arin Hanson), Tim Carter, Angry Boss, Jared Bruceton (Shared with Eduard Khil), Dincent Dan Gough, Shrek the Dinosaur, Oliver Quinn, Andrew Herbert, Mick Ellison, Finlay Fish, Dumb Daleks (Shared with Nicholas Briggs), Leprechaun Puppet
- Ian McKellen - The Toad
- Colm Meaney - Myles Standish
- King Mewtwo - Harry Bradshaw
- Michael - Super Minecraft Kid
- Thomas Middleditch - Harold Hutchkins
- Molly - Herself
- Lorenzo Music (†) - Garfield
- Mike Myers - The Cat in Live Hat
N[]
- nao - 5pb. (Shared with Mela Lee and Caitlin Glass)
- Sue Elliot Nichols - Moody Margaret
- None - Thin Air
P[]
- Finn Palmer - Himself (Shared with Jack Mayhew, Arin Hanson and Mark Berry)
- Stelle-Parallax - Sonny Slaven
- Norman Peterson - NormsBarStool
- Pete Polcon - Himself (Shared with Jack Mayhew)
- Adam Powell - Adamp5104
R[]
- Alan Reed (†) - Fred Flintstone
- Windham Rotunda (†) - Donny Dlaven (Shared with Bizarre Jokester and Christian Bale)
S[]
- Kanako Sakai - Compa (Shared with Cristina Vee)
- Lee Saunderson - Himself
- Stephanie Sheh -Histoire (Shared with Mika Kanai)
- Megan Shipman - IF (Shared with Kana Ueda and Kate Higgins)
- Simon - Hippo
- Jess Smith - Sun Baby
- Sheridan Smith - Michelle
- Theo Stevenson (Shared with Lizzie Waterworth)
- Sir Alan Sugar - Himself
T[]
- George Takei - S.T.E.V.E.
- Rei Tanaka - Neptune/Purple Heart, (Shared with Melissa Fahn), Big Nep (Also shared with Melissa Fahn)
- Emma Tate - Perfect Peter
- Brad Till - Himself/Angus (Shared with Jack Mayhew; Final Smash only)
U[]
- Kana Ueda - IF (Shared with Kate Higgins and Megan Shipman)
- Unknown - Mark the Moose, Papa Louie, Kawaii Krunch
V[]
- Cristina Vee - Compa (Shared with Kanako Sakai), Croire (Shared with Mika Kanai)
- Johnny Vegas - Abu
- Various Voices - Action 52, Genesis 52, Grandpa Gorilla, Zookeeper, Voice Trumpet
W[]
- Julie Walters - Nan
- Lizzie Waterworth - Horrid Henry (Shared with Theo Stevenson)
- Brodi Welsford - Herself
- Bob West - Barney the Dinosaur (Shared with David Joyner)
- Owen Wilson - Reggie/The Great Turkey
- Dan Wright - Small
X[]
- Deng Xiaoping (†) - Tong Shau Ping
Y[]
- Edward Yui - Himself (Shared with Jack Mayhew)
Z[]
- Steve Zahn - Frank Heffley
- Sofie Zamchick - Linny the Guinea Pig