Here are the cast of Go Sweetie Crew!

Megumi Aino/Cure Lovely
Towa Akagi/Cure Scarlet
Homare Kagayaki/Cure Etoile
Chiyu Sawaizumi/Cure Fontaine
Yukari Kotozume/Cure Macaron
Mai Mishou/Cure Egret
Urara Kasugano/Cure Lemonade
Choppy
Foop
Pegitan

Here are the cast of Joyful Girls Squad!

Aguri Madoka/Cure Ace
Hime Shirayuki/Cure Princess
Himari Arisugawa/Cure Custard
Kotoha Hanami/Cure Felice
Miki Aono/Cure Berry
Hibiki Hojo/Cure Melody
Ruru Amour/Cure Amour
Dory
Miry
Ai

Speaking of the character focus, here it is!

Main Characters:
Megumi Aino/Cure Lovely
Hime Shirayuki/Cure Princess
Towa Akagi/Cure Scarlet
Aguri Madoka/Cure Ace

Supporting Chracters:

Ruru Amour/Cure Amour
Urara Kasugano/Cure Lemonade
Hibiki Hojo/Cure Melody
Yukari Kotozume/Cure Macaron
Miki Aono/Cure Berry
Mai Mishou/Cure Egret
Kotoha Hanami/Cure Felice
Homare Kagayaki/Cure Etoile
Himari Arisugawa/Cure Custard
Chiyu Sawaizumi/Cure Fontaine

Mascots:

Ribbon
Ai
Dory
Miry
Choppy
Foop
Pegitan

My OC characters (they were just been put for the story):

Fumu (フム, Fumu)(She looks like Non Manaka from Pripara)
King Tori (トリ大王, Tori Daiou)(He looks like King Dedede from Kirby series)
Yumeko (ユメコ, Yumeko)(She looks like Purin from Sanrio)
The Queen (女王, Joou)(She looks like Latifa Fleuranza from Amagi Brilliant Park)
Queen of Darkness (闇の女王, Yami no Joou)(She looks like Medusa from Fate/stay night)