Diane Kiyoko
Known RelationsRichard Kiyoko (father)
Felicia Kiyoko (mother)
ResidenceAmity Park, Earth
Voice ActorVyvan Pham (Desired)
First AppearanceSam Manson: Monster Hunter episode "Monster Hunter in Training"
UniverseSam Manson: Monster Hunter

Diane Kiyoko is a Japanese-American 15-year-old girl who will appear, along with Rachel Dawson and Greg Osbourne, as the main character in the Danny Phantom spin-off Sam Manson: Monster Hunter.


She wears a white T-shirt, blue jeans, and sandals. Her eyes are jade green and her lips are light pink. Her design is based on Paulina, with a lighter skin tone, her hair straighten downward, and Japanese eyes.


  • Greg Osbourne is her love interest.
  • Her voice is very similar to Julie Yamamoto of Ben 10: Alien Force and Ben 10: Ultimate Alien.
  • She sometimes lived with Rachel and Greg at a huge apartment building in New York City. Her third floor apartment had over 30 saltwater aquariums, which include those for Japanese spider crabs, giant Pacific octopuses, giant isopods, sunflower starfish, Caribbean spiny lobsters, green moray eels, weedy sea dragons, leafy sea dragons, seahorses, moon jellyfish, Pacific sea nettles, lionfish, stonefish, wolf fish, American lobsters, garden eels, and a huge Indo-Pacific reef with many types of fish and a giant clam.