Professor Membrane, also known as Membrane, has appeared in 26 comics since 2001. The most recent cataloged appearance dates to 2021. Most cataloged appearances come from Invader Zim.
Oni Press
5 issues
1 issue
4 issues
50 issues
Collected Edition
10 issues
Nickelodeon
47 issues
Invader Zim (2017)
Sep 29, 2021
Invader ZIM Quarterly Collection: Oodles of Doom (2021)
Aug 04, 2021
Invader Zim Quarterly (2020)
Dec 30, 2020
Sep 23, 2020
Invader Zim (2015)
Jun 26, 2019
Invader Zim (2016)
Apr 17, 2019
Mar 27, 2019
Feb 27, 2019
Jan 02, 2019
Gazlene Membrane
Dib Membrane
Zim
GIR
Minimoose
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