The Vocaloids who appear are Meiko Sakine who is basically a younger version of MEIKO. Rin and Len Kagamine, Miku Hatsune, KAITO, and Yowane Haku. There is also Teto Kasane an UTAUloid, and Neru Akita a popular fanmade.
there is a game based on vocaloids, but originally its a program.
Probably utauloids
Tosca, Honey
There are a lot of VOCALOIDs. VOCALOIDs are now up to at least 45, and their are more than 60 voicebanks.
No. VOCALOIDs are not couples. VOCALOIDs do not have to deal with anime or couples. It's only a singing program.
KAITO doesn't have a specific age, along with MOST of the Vocaloids. Though he appears to be in his mid-20's. The statement below is false as "Honey All Stars" is not 'official', by means of YAMAHA or Crypton Future Media not handling it. Kaito is 20 years old. It is stated in the Vocaloid video "Honey all stars" when a 20 appears next to his name. 21 years old! I believe he is around 20 years or so.
Gigi Papasavvas
yes
There is no any other VOCALOIDs. All vocals found in VOCALOID wikia are the original VOCALOIDs made buy actual music/recording companies. Haku Yowane, Akita Neru, and Hatsune Mikuo etc. are fanmade based of the VOCALOIDs voicebanks.
According to the viral video, the honey badger doesn't give a sh*t.
the American wife
around $200