Jacob Tremblay

Treehouse Boy (voice)

Camper (voice)

Young Charles Lindbergh (voice)

Self - Guest

Self - Clue Giver (voice)

Additional Voices (voice)

Self - Guest

Self (uncredited)

Self - Guest

Robin / Damian Wayne (voice)

Middle-Aged Robin (voice)

Robin (voice)

Damian Wayne (voice)

Flounder (voice)

Riley Stanwyck

Luca Paguro (voice)

Oliver Foley

Young Tandy

Bradley Trevor

Auggie

Rory McKenna

Charles 'Chuck' Krantz (teen)

Jack

Wade, the Kid