Suggestions by @recasterpm

Richard E. Grant

as Sergei Bazhaev in 24

Javier Bardem

as Ramon Salazar in 24

Mark Ruffalo

as Stephen Saunders in 24

Jason Isaacs

as George Mason in 24

Sebastian Stan

as Alexis Drazen in 24

Pedro Pascal

as Tony Almeida in 24

Terrence Howard

as David Palmer in 24

Jeffrey Wright

as David Palmer in 24

Michael Nyqvist

as Victor Drazen in 24

Mike Colter

as Curtis Manning in 24

Sterling K. Brown

as Wayne Palmer in 24

Boyd Holbrook

as Jack Bauer in 24

Joel Kinnaman

as Jack Bauer in 24

Colin Firth

as Rupert Giles in Buffy the Vampire Slayer (Reboot/Remake)

Will Poulter

as Oz Osbourne in Buffy the Vampire Slayer (Reboot/Remake)

Florence Pugh

as Buffy Summers in Buffy the Vampire Slayer (Reboot/Remake)

Ralph Fiennes

as Rupert Giles in Buffy The Vampire Slayer 2020

Tom Wlaschiha

as Killer BOB in Twin Peaks (if was made today and gender-bend for some characters)

Joseph Gordon-Levitt

as Dale Cooper in Twin Peaks (if was made today and gender-bend for some characters)

Dean Norris

as Major Garland Briggs in Twin Peaks