The MCU Fantastic Four

Intellectually yes but not personality wise

I meant playing the character full of Stark snark (ha!) and constant quips

I pictured Doom with a calm, calculating coldness (that actually a young Christopher Lee would have been perfect for)

Also Shawshank era Clancy Brown (who played lex Luther in Superman animated series)
An ambiguous euro aristocratic melancholy is central
There’s dozens of actors out there who would slip into that character effortlessly- RDJ is not one
And it’s why the move smacks of desperation