Doctor Bren was a Wulfenbach minion who was a spark. He specialized in biological works and was the one who developed Wasp Eaters. He was declared dead by an injured member of the Vespiary Squad, though critically important parts of his research materials were recovered by Tarvek Sturmvoraus before they were lost, enabling Bren's Wasp Eater research and development to still bear fruit.

He may also have been the creator of the “Slavering Whatzit,” for whatever that’s worth.

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