Suggestions by @mojavedeserts

Sebastian Armesto

as Lieutenant Tschel in Star Wars: Episode VII - 'Heir to the Empire'

Andy Serkis

as Borsk Fey'lya in Star Wars: Episode VII - 'Heir to the Empire'

Lars Mikkelsen

as Thrawn in Star Wars: Episode VII - 'Heir to the Empire'

Peter Mayhew

as Chewbacca in Star Wars: Episode VII - 'Heir to the Empire'

Charles Dance

as Ardus Kaine in Star Wars: Episode VII - 'Heir to the Empire'

Jeff Bridges

as Joruus C'baoth in Star Wars: Episode VII - 'Heir to the Empire'

Harrison Ford

as Han Solo in Star Wars: Episode VII - 'Heir to the Empire'

Emily Carey

as Jaina Solo in Star Wars: Episode VII - 'Heir to the Empire'

Finn Wolfhard

as Jacen Solo in Star Wars: Episode VII - 'Heir to the Empire'

Carrie Fisher

as Leia Organa Solo in Star Wars: Episode VII - 'Heir to the Empire'

Mark Hamill

as Luke Skywalker in Star Wars: Episode VII - 'Heir to the Empire'

Timothy Zahn

as Writer in Star Wars: Episode VII - 'Heir to the Empire'

John Williams

as Composer in Star Wars: Episode VII - 'Heir to the Empire'

Jon Favreau

as Director in Star Wars: Episode VII - 'Heir to the Empire'

George Lucas

as Producer in Star Wars: Episode VII - 'Heir to the Empire'