Mike (voice)

Darren Barnet

Charlie (voice)

Nicolas Cantu

Annie (voice)

Mae Whitman

Cap (voice)

Benjamin Bratt

Irene (voice)

Betty Gilpin

Crybaby Merc (voice) / Crybaby Merc / Annie's Father (voice)

John DiMaggio

Glass Merc / Vet (voice) / Glasses Merc (voice)

Trevor Devall

Islander (voice)

Tania Gunadi

Hiro (voice)

Yuki Matsuzaki

Island Girl (voice)

Fryda Wolff

Tracker Merc (voice)

Mara Junot

Handsome Merc (voice)

Sunil Malhotra

Sam / Hungry Merc (voice) / Sam (voice)

Phil LaMarr

Pointing Merc (voice)

Alejandra Reynoso

Boomer / Merc / Cake Merc

Ian James Corlett

Young Annie (voice)

Charlie Townsend