Niki Hyun Yang (born in Seoul, South Korea as Hyun Jeong Yang; Korean: 양현정; RR: Yang Hyeonjeong, June 8, 1985) is a South Korean animator, writer, storyboard artist, and voice actress. After graduating from Hongik University and then CalArts, she became one of the storyboard artists of Family Guy before moving to Frederator Studios. She is best known for voicing BMO and Lady Rainicorn on the Cartoon Network series Adventure Time.

Filmography

• Adventure Time: Side Quests — BMO (voice), Writer, Director, Story
• Adventure Time: Fionna and Cake — Additional Voices (voice), BMO / Library Person (voice), BMO (voice)
• Shape Island — Writer
• We Baby Bears — Sylvia (voice)
• 2021Wild Help — Director, Creator
• Adventure Time: Distant Lands — BMO / Football / Additional Voices (voice)
• Animaniacs — Soo Yun the Ghost (voice), Defensive Fan #2
• Craig of the Creek — Story, Writer, Storyboard Artist
• Summer Camp Island — Batilda (voice), Heather D / Rosie (voice), Heather D (voice), Egg (voice), Shortcake (voice), Additional Voices (voice), Director, Story
• 2017Clarence’s Stormy Sleepover — Director
• We Bare Bears — Mom / Additional Voices (voice), Mom (voice), Chloe's Mom (voice), Chloe's Mom / Additional Voices (voice)
• 2015Yoyotoki: Happy Ears — Creator
• Clarence — Director, Storyboard Artist
• TripTank — Michiko (voice)
• 2012Adventure Time: Fun with Finn and Jake — BMO / Lady Rainicorn (voice)
• Gravity Falls — Candy Chiu (voice) / Additional Voices (voice), Storyboard
• Adventure Time — BMO / Lady Rainicorn (voice), Writer
• Fish Hooks — Writer, Storyboard Artist
• Fanboy and Chum Chum — Storyboard Artist
• Random! Cartoons — Baby Rabbit (voice), Writer, Creator, Director
• 2008Two Witch Sisters — Baby Rabbit (voice), Director, Writer
• Slacker Cats — Director

Appearances as themselves (1)

• 2018One Crazy Summer: A Look Back at Gravity Falls — Self