We’ve done a bunch of voice recording the ADR for animated shows. Each voice actor was recorded separately and various takes were recorded of each cue. Often, the recording sessions happened in various cities. Production then cut it all together so animation could be done against that track. After the animation was locked we’d do ADR of various lines where intention, emotion, etc. didn’t match to another character’s performance. Also, efforts (screams, grunts, laughs, etc.) were never recorded until ADR.