5 suggestions

Jason 'Wee Man' Acuña
as Grumpy in Snow white and the seven dwarves

Drew Massey
as Kanakaberaka in Out of the Silent Planet

Simon Pegg
as Andrew MacPhee in That Hideous Strength
Gwendoline Christie
as Major “Fairy” Hardcastle in That Hideous Strength

Penelope Wilton
as Margaret “Mother” Dimble in That Hideous Strength