Well, I had a Lime-like Jude Lawbender moment last night, with Kit Harington and Richard Madden who play Jon Snow and Robb Stark on GoT. And many would agree they are well cast as brothers (or half-brothers anyway, since Snow is a bastard), given their resemblance. I was watching Madden who costars with Idris Elba in The Take, and I thought, hey, that's Jon Snow! But no, it was Robb Stark.
Both Harington and Madden appear in the film Eternals, as well, a casting no doubt influenced by their common career springboard.