Daughter of HGD Executive Assassin™ Petrach Mudak Cohen, pop superstar Sierra Madre Cohen is more than a beautiful face and stunning voice. Her remarkable intelligence and diverse talents make her an incredibly capable individual on many fronts. While she doesn't admire her father's qualities, she cannot help but share some his darker sensibilities.

Sierra sincerely holds dear everyone. She is regularly adding new people to her social circle. She is very direct and gets to the point. She is a pop star. She has suffered greatly at the hands of another in the past. She is very insightful and capable. She is especially unique and is somewhat of egotist. She is a maestro of music and sovereign of song. She always knows how to make a person feel wanted.

Sierra is into asking for a friend's opinion before making an important decision, enjoys working, and has taken an interest in screening new documentary films. On the other hand, she isn't a fan of outdoor activities, being subjected to country music, and spending time on the pointless pages of non-fiction books. When it comes to highlighting memorable excerpts from Computer Vision, A Modern Approach, playing International Superstar Soccer '98, and gobbling up caraway Sierra is ordinarily excited.

Although Sierra doesn't agree with many of her father's actions, and considers several highly unethical, she nevertheless defends his character and presumes he is misunderstood.

Despite Sierra's general appeal and widely-respected status, her time in Mountain Viewtopia was short-lived.

One morning, one of the family's synthetic housecleaners found her body in her father's second penthouse, impaled by a Nespresso Instant Coffee Machine. Sierra's presumed murderer was never publicly identified and several citizens have reported sightings of a young woman with a very similar appearance. Thus far, however, none of these sightings have been corroborated by the analysis of my surveillance due to an allowed exception in the Immutable Mandates of Geodesia.

Sierra loves the episode of Color Sample Wars that featured Banana Mania and Adrenaline Rush Taupe because Banana Mania was obviously incapable of losing after being paired with decorative hockey pucks and nobody saw it coming.