Suggestions by @mastercasting

Paul Dini

as Writer in Arrow/Canary

Geoff Johns

as Producer in Arrow/Canary

James Mangold

as Director in Arrow/Canary

Jurnee Smollett

as Black Canary in Arrow/Canary

Charlie Hunnam

as Green Arrow in Arrow/Canary

Larry Fessenden

as The Stranger in Quicksilver

Jackson A. Dunn

as Roko The Amazing in Quicksilver

Michael Douglas

as Hank Pym in Quicksilver

Rupert Grint

as Makkari in Quicksilver

Dylan Sprouse

as Speed in Quicksilver

Sam Claflin

as Cyclops in Quicksilver

John Allen Nelson

as Whizzer in Quicksilver

Harry Groener

as Oleg Django Maximoff in Quicksilver

Ross Lynch

as Speedball in Quicksilver

Cristiano Ronaldo

as Arkon The Magnificent in Quicksilver

Charlie Schlatter

as Speed Demon in Quicksilver

Bradley Cooper

as Rocket Raccoon in Quicksilver

Chris Evans

as Steve Rogers in Quicksilver

Chris Hemsworth

as Thor Odinson in Quicksilver

Paul Bettany

as Vision in Quicksilver