Cobby má světle modrou pleť a tmavě modrá křídla se žlutě a oranžově pruhovaným břichem a rohy. Je o dva roky starší než jeho bratr Henry Hugglemonster a o rok starší než jeho sestra Summer Hugglemonster. Je mu kolem osmi let.
The Dugglemonster family: Denzel Dugglemonster • Herold Dugglemonster • Maude Dugglemonster
The Growlerstein family: • Milo Growlerstein • Joyce Growlerstein
The Munderclaw family: Meg Munderclaw
The Enormomonster family: Estelle Enormomonster • Eduardo Enormomonster • Ernestine Enormomonster • Hugo Enormomonster • Josh Enormomonster
The Snifflemonster family: Roberto Snifflemonster • Hunter Snifflemonster • Oscar Snifflemonster • Izzy Snifflemonster • Roy and Kelly Snifflemonster
Animals: • Christmas Star Bird
Other: Isabella Roarson • Roddy Cloudmonster • Mayor Roariani • Officer Higgins
Druhá série: Big Baby / Perfect Anniversary • Ivor Takes the Cake / Runaway Airship • Kde je Beckett? / Huggleflight • Knit-O-Bot / Scouts vs. Scouts • Monsterly Ever After / The Roarsome Foursome • The Do-It-Yourself Sleepover / Roarsville Rules • Summer Vision / The Pizza Brothers • Cobby and the Brain / Robo-Friend • Henry Time / Rock, Rattle and Roller Practice • The Grr-Cloud / Monster Mama’s Day • On the Huggleroad • Never Enough Henrys / Roddy the Hero • All About Summer Camp / Huggle…Whaaa?! • Roar-Plane Racing / Hugglemonster and Son • Huggleween Moon • Monster Scare Fair / The Roarsville Rovers • Monster in the Middle / The Good, the Bad, and the Monsterly • Scout’s Honor / Home Sweet Hugglehome • Working Monster / Denzel Moves Away • Ivor’s Birthday Bash / Huggle Bubbles • Good Morning, Roarsville / Daycare Breakout • The Abominable Snowball / The Very Special Henry Hugglemas • Is a Fella Isabella? / Dudes’ Day Off with Daddo