Tess is a character featured in Jak II and Jak 3, with cameo appearances in Daxter and Jak X: Combat Racing. One of the most valuable and courageous members of the Underground rebel organization in Haven City, she is introduced as an undercover bartender at the Hip Hog Heaven Saloon, working to spy on crime boss Krew. She would eventually become Daxter's primary love interest, despite being a human herself.

Later, Tess designed weapons for the Freedom League during the war in Haven City, while also serving as interim manager of the Naughty Ottsel in Daxter's absence. Tess was ultimately transformed into an ottsel, like Daxter, by the Ottsel Leader, which she appeared to embrace. While all known Precursors are ottsels, it is unknown whether Tess is a Precursor herself simply by virtue of being an ottsel.