Dr. Tess Coleman is a working writer and psychologist, author of Through the Looking Glass: Senescence in Retrograde, a book about psychology helps. She has a common single mother life, taking care of her children, Anna and Harry with no problems, but always involved with discussions, especially with Anna. When she gets a phone call from the school principal that Anna was in detention twice, she punishes her by cutting off her privacy privileges and taking down her bedroom door.
The top of the discussion came in the chinese restaurant, House of Chang, when Anna told Tess that she would have an audition of her band at the same time of Tess' wedding rehearsal dinner, leaving her mother even angrier about it.
On her daughter's body, Tess realizes that Anna's enemy, Stacey Hinkhouse is in fact an enemy, so she erased all of Stacey's test answers, and her music with Pink Slip isn't all that "noise". Tess owns a 2001 Volvo S60, which is also driven by Anna, when body-switched.
She is portrayed by Jamie Lee Curtis.
- "Make good choices!"
- "Could you like chill for a sec?" (as Anna)
- "Oh, I'm like the cryptkeeper!" (as Anna)
- "Get away you clone freak!" (as Anna)
- "I can't marry Ryan, ew!" (as Anna)
- "No, it has to be halibut!"