Suggestions by @biggord

Jamie Campbell Bower

as Mad Hatter in Arkham Asylum (DCTVU)

Score: +1

Brendan Fraser

as Professor Pyg in Arkham Asylum (DCTVU)

Score: +2

Brendan Fraser

as The Butcher in The Knight Of Gotham (Season 1)

Score: +1

Cody Fern

as Firefly in Arkham Asylum (DCTVU)

Score: +1

Finn Wittrock

as Mr. Zsasz in Arkham Asylum (DCTVU)

Score: +2

Dan Stevens

as Scarecrow in Arkham Asylum (DCTVU)

Score: +2

Jodie Comer

as Doctor Harleen Quinzel in Arkham Asylum (DCTVU)

Score: +3

Martin Wallström

as Riddler in Arkham Asylum (DCTVU)

Score: +1

Michael James Shaw

as Aaron Cash in Arkham Asylum (DCTVU)

Score: +1

Billy Magnussen

as Joker in Arkham Asylum (DCTVU)

Score: 0

Kodi Smit-McPhee

as Alberto Falcone in The Knight Of Gotham (Season 1)

Score: +1

Bryan Cranston

as Doctor Hugo Strange in Arkham Asylum (DCTVU)

Score: 0

Kodi Smit-McPhee

as Alberto Falcone in Arkham Asylum (DCTVU)

Score: +1

Professor Pyg

as The Butcher in The Knight Of Gotham (Season 1)

Score: +1

Spoiler

as The Butcher in The Knight Of Gotham (Season 1)

Score: +1

Cody Fern

as The Pyromaniac in The Knight Of Gotham (Season 1)

Score: +1

Firefly

as The Pyromaniac in The Knight Of Gotham (Season 1)

Score: +1

Spoiler

as The Pyromaniac in The Knight Of Gotham (Season 1)

Score: +1

Finn Wittrock

as The Hitman in The Knight Of Gotham (Season 1)

Score: +1

Victor Zsasz

as The Hitman in The Knight Of Gotham (Season 1)

Score: +1