Here are the cast in Dog-Man: The Second Epic Movie:
Dog-Man - Frank Welker
Chief - Danny DeVito
Petey the Cat - Seth MacFarlane
Lil Petey - Brooklyn Prince
Petey's Father - Sean Cullen (same voice as Old Rick from Cloudy With a Chance of Meatballs)
Sarah Hatoff - Margot Robbie
Yolay Caprese - Amy Adams
Big Jim - Brad Garrett
Dr. Scum - Rainn Wilson
Piggy - Jordan Peele (same voice as Melvin Sneedly from Captain Underpants: The First Epic Movie)
Crunky - Bill Fagerbakke
Bub - Steve Buscemi
Daryl - Sean Hayes
Uncle Larry - Kevin James
George Beard - Kevin Hart
Harold Hutchins - Thomas Middleditch
Jessica Gordon - Isabela Moner
Sophie "Sophie One/Permanent Sophie" Gordon - Addison Holley
Sophie "Other Sophie/Temporary Sophie" Evans - Chloe Lourenco Lang