Isaiah Ketchum is one of the main characters in The Miraculous Adventure of Tessa and Lunala. He is one of the twin sons of Ulysses and Stephanie Ketchum. His current Pokémon team consists of Keldeo.

Isaiah Ketchum
45. Isaiah Ketchum


Isaiah Ketchum




Geosenge Town




Ulysses Ketchum (father)
Stephanie Ketchum (mother)
Isaac Ketchum (twin brother)
Delia Ketchum (paternal aunt)
Unnamed paternal uncle on his own journey
Ash Ketchum (cousin)
Siebold (maternal uncle)
Renee Zumi (maternal aunt)
Isabelle Zumi (cousin)
Doug Zumi (cousin)
Sienna Zumi (cousin)


Tessa Sycamore
Lydia Johnson
(Twin brother) Isaac Ketchum
Carter Hubbard
Lunick Hamada
Maggie Winters
Liam Carson
Liz Hampton
Sebastian White
Yushuv Hayes
Kaelynne Harvey
Rose Abbot
Elijah Jones
Birhan Robinson
Blake Noxic
Robin Clinton
Meghan Cheng-Strange
Michael Enon
Annaleise Rivas
Dylan Peterson
Trey Samson
Thomas Sanderson
Lycan Singh
Maya Shirona-Hart
Artorias Oakley
His cousin Isabelle Zumi
Alyssa McMann
Derek Morris
Lucas Cove
Julie Rhodes
Anna Aiken-Henderson
Nolan Hart
Seth Caprio
Christian Klein
Troy Atlas
Elias Bane
Evan Stone
Alexander Grace
Eric Logan
Allison Rogers
Clara Campo
Jasmine Van Horn
Peter Lang
Damien Sky
Lyric Johnson
Anderson Davis
Hunter Dimarco
Aiden Park
Phillip Lotus
Chara Dupain
Marie Noel
Yumi Lukasiak
Oliver Fern
Ethan Lynch
Melody Pinesis
Jerco Snow
Lillie Germain
Brianna Cavell
Moana Dixon
Bethany Cantrell
Adrien Mondena
Natalie Bannister
Rebecca Wilson
Keldeo and the other Legendaries


Dark Matter


Pouty, sulker and challenging

Voice Actor:

Jaden Harmon


  • His voice actor, Jaden Harmon, is best known for playing Andre in One Tree Hill.
  • The name, Isaiah, means Salvation of Arceus.