soundslikematsuda | Tales of the World Reve Unitia: Jade's Skits (English Sub) @soundslikematsuda | Uploaded 8 years ago | Updated 13 hours ago
These are all of the ones I was able to find, but I think there are a few I missed, like Presea. Subbing it this way was easier for me than hardsubbing it, so remember to turn on captions so you can see them.

Now, a quick rundown of all the characters and which games they're from...

Jade Curtiss: Tales of the Abyss
Zelos Wilder: Tales of Symphonia
Luca Milda: Tales of Innocence
Raven: Tales of Vesperia
Milla Maxwell: Tales of Xillia
Julius Will Kresnik: Tales of Xillia 2

Luca is probably the only one most of you will be unfamiliar with because Innocence never received a localization. For context, the "friend", he's referring to is his past self from another lifetime, Asura, who was a brilliant warlord.