Sage is a very self-obsessed woman and self-confessed rebel who seems to always be worked up about something, making her a stereotypical Gen X-er. Sage has a "lazy" outlook on life and most her apparent obsession is the sound of her own voice, along with sex as she admits to have slept with the entire Danzig line-up, along with a man she "did behind the Cluckin' Bell", and pleads, "Would somebody please just sleep with me!" during the outro to Soundgarden's song "Rusty Cage", amongst at least two other references. Sage has strong a dislike towards people over the age of 29 (declaring herself to be a part of a revolution to overthrow everyone over the age of 30), and admits to having huffed paint and ether.
In addition to not wearing any underwear, Sage also complains about San Andreas' health system and the excessive cheerfulness of cartoons. Like Mary-Beth Maybell, Sage is considered to be a radio-only role within the general scheme of things. Tommy "The Nightmare" Smith of K-DST radio has a vendetta against her even though her radio station plays "Welcome to the Jungle", in which Tommy's voice-over actor, W. Axl Rose, had a part in creating.
Sage is voiced by Jodie Shawback.