- Maxwell Perry Cotton - Billy
- James Tupper - Rick
- Dominic Chianese - Reader
- William Charles Mitchell - Yates
- Kelli Barrett - Tommy's Mom
- Dylan Clark Marshall - Young Tommy Popper #2
- Brian T. Delaney - Young Tom Popper, Sr. (voice)
- Elaine Kussack - Gremmins's Secretary
- Desmin Borges - Daryl
- Lee Moore - Reginald
- Dominic Colón - Tito
- Jeff Lima - Freddy
- Frank Ciornei - Klaus
- J.R. Horne - Arnold
- Matthew Wolf - Antarctic Friend (voice)
- Andrew Stewart-Jones - Animal Control Guy
- James Chen - Fish & Game Officer
- Rafael Osorio - Marine & Waterfowl Officer
- Joseph D'Onofrio - Random Man on Street
- Olga Merediz - Nanny
- Betsy Aidem - Tavern Hostess
- Angel Caban - Fishmonger
- Chris Beetem - Young Developer
- Daniel Stewart Sherman - Zoo Security Guard
- Mike Massimino - Cop #1
- Charlie Semine - Cop #2 (Quint)
- Cynthia Kirchner - Pulse Lounge Beautiful Girl (uncredited)
- Renee Burke
- G. A. Aguilar
- Sean Anders
- Ira Napoliello
- Johnny Gidcomb
- Jonathan Filley
- John Davis
- Laura Harris Atkinson
- Donald Flick
- David Lucarelli
- Mark A. Mangini
- Christopher T. Welch
- Piero Mura
Capítulo disponible en las siguientes plataformas:
