John Murphy
(Richard Harmon)

Murphy has gone from zero to hero in three seasons. We never thought we’d enjoy watching him and Clarke work together, but it was one of the highlights of season 3.

If Bellarke need a third person to help thwart the nuclear meltdown, Murphy seems like a great choice — if he’s not too busy with Emori (Luisa D’Oliveira). Theirs was a fun new relationship in season 3.