TDI Bios-Jessica
- Name: Jessica Leigh McDonald
- Nicknames: Jessie, Jay
- Hair Color: Blond
- Eye Color: Blue
- Age: 16
- Height: 5'1
- Weight: 100 lbs.
- Known Relatives: Bridgette (sister), Austin, Kaylee (children), Geoff (brother in law), Sonny (niece)
- Favorite Color: Lime green
- Favorite Show: Cake Boss
- Favorite Food: Lobster tails
- Jessica is a total diva and the exact oppostie of her twin sister. She and Justin are in love with each other and make fun of Beth together behind her back. She loves to surf.
- Themesong: You Belong With Me by Taylor Swift