John Wesley Powell.......................McKensie Finan

William Dunn....................................Harper Scott

John Colton Sumner......................Camila Steele

Old Shady..........................................Kelsey Hames

Bradley................................................Dakota Booher

Frank Goodman...............................Julia Dirkes-Jacks

Mr. Asa................................................Linus Sampson

Hall.......................................................Gabriela Simmons

Hawkins..............................................Marjorie Brackett

O.G. Howland/Tsauwiat................DaZha Creal

Seneca Howland/The Bishop......Alyssa Flores-Tirado