Nurse Jumbo

Bertha Jumbo was the helper for Chester in Operation: S.A.F.A.R.I.. She starts off as a human, then she is seen as a huge elephant, who helped Chester follow Numbuh 1, carrying him. At the end, she wasn't the doctors helper Chester was. She also made a cameo in Operation: M.O.V.I.E., A.W.A.R.D.S. and Z.E.R.O. when she is seen as a Senior Citi-zombie walking while Numbuh 2 and Numbuh 86 are talking. She dislike needles.

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