Suggestions by @vadim_havard

Troy James

as Rag Doll in Flash

Javicia Leslie

as Ryan Wilder in Flash

Anthony Carrigan

as Metamorpho in Flash

Cory Gruter-Andrew

as Per Degaton in Flash

Robbie Amell

as Firestorm in Flash

Leslie Grace

as Batgirl in Flash

John Barrowman

as Merlyn in Flash

Ryan Handley

as Godspeed in Flash

Karan Oberoi

as Godspeed in Flash

Neil Hopkins

as Sportsmaster in Flash

David Cubitt

as Mark Shaw in Flash

Peter Sarsgaard

as Hector Hammond in Flash

Michael Christopher Smith

as Multiplex in Flash

Bob Frazer

as Psycho-Pirate in Flash

Dominic Burgess

as Kilg%re in Flash

Danielle Panabaker

as Killer Frost in Flash

Phil LaMarr

as Malefic in Flash

Greg Finley

as Girder in Flash

Dominic Purcell

as Heat Wave in Flash

Maribel Verdú

as Nora Allen in Flash