The Dark Chick - Hilgya, later replaced by Leeky, later replaced by Malack
The Sixth Ranger - Yikyik, later replaced by Yokyok, later replaced by Yukyuk, later replaced by Kilkil
A note should be made about the spoilered members - this is how this is supposed to be, but considering all people involved, we don't know how it will turn out.
A note should be made about Team Evil from The Order of the Stick. Yes, they're a band of villains, but they don't work together as a band, neither Tsukiko nor the Monster in the Darkness fit into the Five Bad Band dynamic, and there isn't a fifth member.