Suggestions by @KingGameRuler
845 suggestions

Ozzy Osbourne
as Piers in Pokémon Adventures (Gym Leaders)

Wendie Malick
as Opal in Pokémon Adventures (Gym Leaders)

Brittney Lee Hamilton
as Hapu in Pokémon Adventures (Gym Leaders)
Michael McMillian
as Nanu in Pokémon Adventures (Gym Leaders)

Marisa Kennedy
as Olivia in Pokémon Adventures (Gym Leaders)
John Rhys-Davies
as Wulfric in Pokémon Adventures (Gym Leaders)

Catrin Lloyd-Bollard
as Olympia in Pokémon Adventures (Gym Leaders)

Sarah Wiedenheft
as Iono in Pokémon Adventures (Gym Leaders)

Casey Mongillo
as Allister in Pokémon Adventures (Gym Leaders)
Brad Garrett
as Hala in Pokémon Adventures (Gym Leaders)

Hynden Walch
as Valerie in Pokémon Adventures (Gym Leaders)

Michael Liscio Jr.
as Clemont in Pokémon Adventures (Gym Leaders)
Bill Farmer
as Ramos in Pokémon Adventures (Gym Leaders)

Lisa Ortiz
as Korrina in Pokémon Adventures (Gym Leaders)

Donald Glover
as Grant in Pokémon Adventures (Gym Leaders)

Ryan Bartley
as Viola in Pokémon Adventures (Gym Leaders)

Zeno Robinson
as Marlon in Pokémon Adventures (Gym Leaders)

Clancy Brown
as Drayden in Pokémon Adventures (Gym Leaders)
Jackie Chan
as Brycen in Pokémon Adventures (Gym Leaders)

Erika Harlacher
as Skyla in Pokémon Adventures (Gym Leaders)