1. Sean Connery as the Green Knight in Sword of the Valiant
He’s green, he’s sparkly, he can attach his own head and in this barely recognisable bastardised version of Gawain and the Green Knight, he has NOTHING to do with Bertilak. But he IS Sean Connery, and he IS green and sparkly.
2. Sinead Cusack as an Evil Nun in Camelot
She’s fabulous, but she’s evil.
3. Joan Allen as Evil Morgause in the Mists of Avalon
Please suggest any I’ve missed!