Tony Fadil as PS Sean Cooper

Elliot Cable as PC Bruce Brody

Mark Wingett as Bob

Sonera Angel as Katie

Chris Monk as Dan

Kit Pascoe as Ellen

Primrose Bigwood as Judith

Rad Brown as Smart Alien Creature

Jimmy 'The Bee' Bennett as Billy / Extra Alien Creature #1

Michelle Archer as Police Controller

Silas Welch as Running Alien Creature

Jake Taviner as Eating Alien Creature

Can Somer as Chasing Alien Creature

Anastasia Cane as Lead Alien Creature

Will Pryor as Bath Alien Creature

Debbie Tarrier as Patrice

Paul Durso as Boxing Alien Creature

Lxa Lynch as Extra Alien Creature #2

Steven M. Smith as Crawling Alien Creature

Nicholas Taviner as Construction Alien Creature #1

Jeremy Taviner as Construction Alien Creature #2

Kim Taviner as Plumber Girl Alien Creature

Jim Ruel as Alien Creature #1

Sophia Blake as Alien Creature #2

Craig Blavics as Alien Creature #3

Fiona Fisher as Alien Creature #4

Florence Day as Alien Creature #5

Sarah Price as Alien Creature #6

Bayley Drew as Alien Creature #7

Martin Jackson as Alien Creature #8

Susan Monica Bellamy as Alien Creature #9

Shealagh Lewis as Alien Creature #10

Mabel Day as Alien Creature #11

Indigo Hawk as Alien Creature #12

Peter Addison as Alien Creature #13

Emily Wigston as Alien Creature #14

Richard Clevedon Smith as Alien Creature #15

Nick Wigston as Alien Creature #16

Phil Scott as Alien Creature #18

Jasmine Reed-Yang as Alien Creature #19

Samantha Iremonger as Alien Creature #20

Doc Honk as Alien Creature #21

Lahni Leballeur as Alien Creature #22

Stuart Terrell as Alien Creature #23

Jamie Russell as Alien Creature #24

Andre Orchard as Alien Creature #25

Kevin Teague as Alien Creature #26

India Teague as Alien Creature #27

Mayzie Jo Teague as Alien Creature #28

Gemma Teague as Alien Creature #29

Donald Trump as Self (archive footage)

Boris Johnson as Self (archive footage)

Emmanuel Macron as Self (archive footage)

Andrew Orchard as Alien Creature #17