Suggestions by @joshthomas

Hugh Jackman

as Ironhide in Transformers: War for Cybertron

Steve Blum

as Starscream in Transformers: War for Cybertron

Frank Welker

as Megatron in Transformers: War for Cybertron

Dylan O'Brien

as Bumblebee in Transformers: War for Cybertron

Peter Cullen

as Optimus Prime in Transformers: War for Cybertron

Chris Messina

as Victor Zsasz in Deathstroke (Rebirth)

Yahya Abdul-Mateen II

as David Hyde in Deathstroke (Rebirth)

J.K. Simmons

as James Gordon in Deathstroke (Rebirth)

Margot Robbie

as Harleen Quinzel in Deathstroke (Rebirth)

Jeremy Irons

as Alfred Pennyworth in Deathstroke (Rebirth)

Kate Siegel

as LadyDevimon in Digimon: Digital Monsters

Viola Davis

as Amanda Waller in Deathstroke (Rebirth)

Eva Green

as Pamela Isley in Heroes in Crisis

Dylan O'Brien

as Dick Grayson in Deathstroke (Rebirth)

Henry Cavill

as Kal-El, Clark Kent in Deathstroke (Rebirth)

Ben Affleck

as Bruce Wayne in Deathstroke (Rebirth)

Joe Manganiello

as Slade Wilson in Deathstroke (Rebirth)

Ezra Miller

as Barry Allen in Heroes in Crisis

Amy Adams

as Lois Lane in Heroes in Crisis

Scott Porter

as Dick Grayson in Batman: Gotham Crusaders