While designs for every member of the Bad Batch had been finalized in 2011, the design team revisited the unfinished digital models in late 2018. They felt that each character’s unique personality had resulted in designs for a group of soldiers that looked almost too distinct from each other, and not enough like clones. Thus, developed newly for the final season on Disney+, the remodeled Bad Batch heads are all variants of the Rex model, with features accentuated or modified. The one thing they all share is the same eyes, which are intentionally almost identical to Rex’s.
