Sally Hawkins as Elisa Esposito

Michael Shannon as Richard Strickland

Richard Jenkins as Giles

Octavia Spencer as Zelda Fuller

Michael Stuhlbarg as Dr. Robert Hoffstetler

Doug Jones as Amphibian Man

David Hewlett as Fleming

Nick Searcy as General Hoyt

Stewart Arnott as Bernard

Nigel Bennett as Mihalkov

Lauren Lee Smith as Elaine Strickland

Martin Roach as Brewster Fuller

Allegra Fulton as Yolanda

John Kapelos as Mr. Arzounian

Morgan Kelly as Pie Guy

Marvin Kaye as Burly Russian

Dru Viergever as Military Policeman

Wendy Lyon as Sally (Secretary)

Cody Ray Thompson as Guard

Diego Fuentes as Worker

Madison Ferguson as Tammy Strickland

Jayden Greig as Timmy Strickland

Karen Glave as African American Wife

Danny Waugh as African American Husband

Dan Lett as Cadillac Salesman

Deney Forrest as Lou

Brandon McKnight as Duane

Clyde Whitham as Wet Cinema Patron

Jonelle Gunderson as Bus Passenger #1

Cameron Laurie as Bus Passenger #2

Evgeny Akimov as Russian Band

Sergey Nikonov as Russian Band

Vanessa Oude-Reimerink as Russian Band

Alexey Pankratov as Russian Band

Shane Clinton Jarvis as Military Police (uncredited)

Dave Reachill as Scientist (uncredited)

Amanda Smith as Mrs. Peabody (uncredited)

Maxine Grossman as Bus Passenger (uncredited)

Matthew MacCallum as Shoe Store Owner (uncredited)