Sigmund
Robert Plesko10 series24 issues
Sigmund, also known as Robert Plesko, has appeared in 24 comics from Marvel Comics since 1992. The most recent cataloged appearance dates to 2025. Team affiliations include Karnak Cowboys and Shadow Cabinet. Most cataloged appearances come from Marc Spector: Moon Knight.
Real Name
Robert Plesko
Hero Name
Sigmund
Publisher
First Appearance
Gender
Male
Race
Human
Aliases
Robert Plesko, Black Spectre
Latest Series Appearances
Teams
Teammates
Appears alongside
Start tracking your collection
Track what you own and follow the series you read.
See what other collectors are picking up.