Dr. Jenkins / Dr. Jenkins / Self Michael J. Epstein

Dr. Jenkins / Dr. Jenkins / Bob / Self Kate McCoid

Dr. Jenkins / Self Bob Rose

Hirsute Jenkins / Shaven Jenkins / Self Stephen Stull

Dr. Jenkins / Dr. Jenkins / Self Marie Alessandro

Dr. Jenkins / Dr. Jenkins / Self Aaron Barrocas

Bob (voice) Jack Bennett

Dr. Jenkins / Self Rachel Leah Blumenthal

Bob / Self Sophia Cacciola

Dr. Jenkins / Dr. Jenkins / Self Seth Chatfield

Dr. Jenkins Reggie Chuks

Dr. Jenkins / Evil Dr. Jenkins / Self Chloé Cunha

Bob (voice) Mathieu Cunha

Bob (voice) Joel Edinberg

Dr. Jenkins / Dr. Jenkins / Self Chris Ethridge

Dr. Jenkins (voice) David Fair

Dr. Jenkins / Dr. Jenkins / Self Jeff Frumess

Bob (voice) Larry Greenstein

Dr. Jenkins / Dr. Jenkins / Self Johannes Grenzfurthner

Dr. Jenkins / Dr. Jenkins / Self Hugh Guiney

Dr. Jenkins / Dr. Jenkins / Self Liesel Hanson

Bob (voice) Eric Hollaway

Self Michael Kallio

Human Dr. Jenkins / Self Jennifer Keating

Dr. Jenkins Rahul Lakhina

Bob (voice) Cory McAbee

Bob (voice) L.J. McRae

Dr. Jenkins Br Oom

Dr. Jenkins / Dr. Jenkins Diana Porter

Dr. Jenkins / Dr. Jenkins Zak Seeley

Dr. Jenkins / Dr. Jenkins / Self Greg Sisco

Dr. Jenkins / Dr. Jenkins Andrew J. Smith

Bob (voice) Sarah Steinberg Heller

Dr. Jenkins / Self Josh Stifter

Dr. Jenkins / Self Maximus T.G. Stifter

Self Raphael Stifter

Dr. Jenkins / Dr. Jenkins John Valadez

Dr. Jenkins / Dr. Jenkins Will Edmiston