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Warner Bros.; Getty Images
The New Zealander and Flight of the Conchords co-founder made his film debut as one of the Elves of Rivendell in The Fellowship of the Ring, with fans ultimately bestowing the otherwise unnamed character with the moniker Figwit—an acronym for "Frodo is great...Who is that?" (Even the lore has lore in LOTR). He was such a popular addition to the ensemble, he appeared in Return of the King as well, and played a different elf, Lindir, in The Hobbit: An Unexpected Journey.
Outside of Middle-earth, McKenzie teamed with Flight of the Conchords mate Jemaine Clement on their still-touring musical-comedy duo's eponymous HBO series, won an Oscar for Best Original Song for "Man or Muppet" from 2011's The Muppet Movie, and had three children with wife Hannah Clarke.