Mega Shark vs. Giant Octopus

Allan Baxter

Lorenzo Lamas

Emma MacNeil

Debbie Gibson

Lamar Sanders

Sean Lawlor

Seiji Shimada

Vic Chao

Vince

Jonathan Nation

Dick Ritchie

Mark Hengst

Takeo

Michael Teh

Kenji

Chris Haley

Helmsman

Dustin Harnish

U.S. Sub Captain

Dean Kreyling

U.S. Sub Sonar Chief

Stephen Blackehart

Marine Biologist

Dana DiMatteo

Deputy

Myles Cranford

Naval Officer

Dana Healey

Weapons Officer

John Bolen

Admiral Scott

Russ Kingston

Japanese Typhoon Captain

Larry Wang Parrish

Sub Commander

Stephanie Gernhauser

Sonar Tech

Cooper Harris

Destroyer Captain

Matt Lagan

Destroyer Sonar Man

Hunter Ives

Destroyer Sonar Tech

Douglas N. Hachiya

FBI Agent (uncredited)

Sergio Kato

Typhoon Navigator

Aki Hiro

Destroyer Sonar Man

John Gilligan

Radioman

Michael Allendorf

Radioman

Colin Broussard

Navigator

Mikos Zavros

FBI Agent

Elijah Flores

FBI Agent

Daniel Schachtel

FBI Agent

Nathan Sikes

Blackbird Pilot

David Meador

Pilot / Deck Officer

Jay Beyers

Passenger

Michael C. Parisi

Passenger

Michael Drummond

Passenger

Molly Drummond

Passenger

Emily Lavigna

Passenger

Michelle Hodnett

Passenger

Silje Gruner

Passenger

Joey Ruggles

Passenger

Knayi Clement

Sailor

Brandon Plemons

Background

Conrad Lihilihi

Background

Rebecca Helm

Background

Chan Park

Background

Chuck Willis

Background

Craig Childress

Background

Jay Cynik

Backrground

Andre H. Bassett

Background

Artem Shatokhin

Background

Jason Covington

Background

Alan Woods

Background

Ángela Guerrero

Background

James Rolls

Background

Julia Torchine

Background

Sharon Stockbridge