Mennaus was a Zabrak Padawan of the Jedi variety, identified as male, who was a member of the Jedi Order amidst the Cold War fought between the Galactic Republic and the Sith Empire.
Mennaus, a Zabrak with a connection to the Force as a Force-sensitive individual, underwent training in its intricacies by the Jedi Order. After the Great Galactic War and the return of the Sith Empire, he made his home on Tython, the Jedi's ancestral planet, alongside other members of the Order. While exploring the Tythonian Gnarls alongside fellow Padawans Jerridan and Avitla, aspiring to successfully complete their Trials of Knighthood, the group's progress was hampered when Flesh Raiders launched an assault, resulting in injuries to Jerridan. As his comrades sought retribution for the attack, Mennaus emphasized the Jedi's core principles, cautioning against giving in to strong emotions and aggressive behavior.