Poppy is a beloved American actress in the romantic comedy genre, Luis Lopez even calls her "America's favorite daughter". However, Poppy also has a wild nightclub life that she tries to keep private (possibly a parody of Lindsay Lohan). She tells Luis that her manager insists on her cleaning up her act, as she was allegedly caught sexting and it has slightly damaged her career.
Events of TBoGT
In Club Management, paparazzi crowd rounds the club in order to get photo coverage of her latest trip to the club. She had apparently discretely finished group sex in the VIP room (this was written about on Celebinator, and their blog picture reveals she changed clothes) when she wished to exit the club without paparazzi bothering her. Luis drives a fire engine to the doors and uses the fire hose to scare off the photographers, who scatter once sprayed. Poppy then gets a lift in the fire truck (or any other vehicle of the player's choosing) to the hotel where she was staying, the unnamed hotel on Luddite East. Like many girls in the nightlife scene, Poppy had sex with Luis in the VIP room after hours.
Events of GTA V
During her appearance in GTA V, Poppy is a lot more unstable and anger prone than in her TBoGT appearance, probably due to years of Vinewood and paparazzi pressure wearing down on her. She appeared in the article Poppy Mitchell Gets Popped! for Stars Talk Weekly magazine, where she blamed liberals and Lacey Jonas for her recent mischief.
Poppy appears in the missions Paparazzo - The Sex Tape and Paparazzo - The Meltdown. After Franklin and Beverly record her and a "teenager" called Justin on video camera having anal sex, she chases them in her car while threatening to kill them and everyone they care about. They manage to lose her by cutting through a construction yard.
Later, during Paparazzo - The Meltdown, she is being chased by cops for drunk driving and Franklin gets commissioned by Beverly to take a picture of her as she is being arrested. After her arrest, a random Weazel News radio broadcast reveals that she was convicted for drunk driving and sentenced to an unspecified amount of time in prison.