Tammi is a recurring character on Squidbillies. She is the gap-toothed daughter of Krystal and an unnamed man, the half-sister, girlfriend, and later wife of Rusty Cuyler, and the mother of Rusty's child, Randy Cuyler, as well as many other sons and daughters.
Tammi is voiced by guest star Elizabeth Cook in all her appearances, except for the tenth season, when her voice actor was replaced by Faye Otto.
She was introduced in the Season 6 episode "Keeping It in the Family Way" as Rusty's girlfriend, who is stalked relentlessly by Early. At the end of the episode, Rusty and Tammi discover that they share the same mother and are half-siblings, but they continue their sexual relationship regardless, mostly due to their lack of intelligence and their belief that they were "cousins".
In the first episode of Season 7, "Rusty and Tammi Sitting in a Tree, B-A-S-T-A-R-D", she does mature somewhat as she puts the baby first ahead of their own and asks Rusty to get a job to provide for their son. She gives birth to "Macho-man Randy Cuyler" and breaks up with Rusty due to his lack of a plan for his future. While Granny and Early were shown to be supportive of Rusty's care for the baby. Once alone, both strictly believe the baby isn't Rusty's as he hasn't inherited any squid traits.
She and Randy would appear in "The Inkubator Lives!", now putting all her efforts into providing for the child. She appears to have a job in as a waitress in a Hooter's restaurant under the employment of Dan Halen. She wants Rusty to pay for child support so she can feed the baby. Once again though, Rusty gets lost in his imagination and is seen pretending to be a cape crusader, instead of looking for work. When she finds out he stole some money from a cashier, she tells him she won't let him see the baby if he continues like that.
Tammi and Randy appear once again in "Ink Is Thicker Than Blood, Which Is Thicker Than Water", where Rusty begins to question whether he really is Randy's father. Unwilling to pay child support for a son that isn't his, he kidnaps Randy and drives off with him, only to discover he is in fact Randy's father after discovering tentacles under his diaper.
In "Cephalo-ectomy", when Randy was bullied in school for his squid tentacles, and gets expelled later on, Tammi had to take him to get surgery at the Dougal County Cosmetic Center, by getting his tentacles removed, which techinally falls, since the tentacles can't be removed.
In "Dove In An Iron Cage", after Rusty was sentenced to prison, after being blamed for the murder of Boyd, which he didn't commit, and she was visiting Rusty, with Randy, in prison, Tammi also sang "Amazing Grace", to await for Rusty's execution, aside Steve Earle and a bunch of other people, before Rusty escaped the said prison by himself.
In "Muscadine Wine", Tammi auditioned to sing "Amazing Grace", and was hired by Roger Alan Wade, to sell churros at a Bible-themed amusement park. Later on, Early and Tammi started a duet together called "Muscadine Wine", which the former got tickets to a cruise ship, however, they weren't booked to play anywhere on the cruise.
In the series' finale "This Show Was Called Squidbillies", Rusty decided to marry Tammi, and move away with her to the city of Elberton and his son Randy, although this leads a fallout in the Cuyler family and Granny's death, who's ring is given to her. In the future, Rusty and Tammi grew older and had various sons and daughters, in their family.
- "Keeping It in the Family Way" (debut)
- "Rusty and Tammi Sitting in a Tree, B-A-S-T-A-R-D"
- "The Inkubator Lives!"
- "Thou Shale Not Drill" (cameo)
- "Gun of a Son"
- "Hetero-Cephalo Agenda" (cameo)
- "Ink Is Thicker Than Blood, Which Is Thicker Than Water"
- "Granny Hotfoot" (cameo)
- "Trackwood Race-ist"
- "Greener Pastor"
- "Squash B'Gosh"
- "Dove In An Iron Cage"
- "The Guzzle Bumpkin"
- "Debased Ball"
- "The War on The War on Christmas"
- "Muscadine Wine"
- "Cooler-Heads Prevail"
- "Blue Lives Battered"
- "There's Sucker Porn Every Minute"
- "One Man Banned"
- "Scorn on the 4th of July" (cameo)
- "Zen and the Art of Truck-Boat-Truck Maintenance"
- "Ol' Hootie"
- "The Liceman Cometh"
- "This Show Was Called Squidbillies" (Final Appearance)
- Tammi may also be the only one in her family who is employed. Her mother never works and it appears her father mostly sleeps on the bed, meaning she probably just takes government checks.
- In "Thou Shale Not Drill", Tammi appeared in a flashback from "Keeping It in the Family Way", on one of Dan Halen's monitors.
- Tammi is perhaps one of the (or only) good characters in the series so far abstaining vices such as drugs, violence, adultery, corruption, greed, and materialism.
- "A Walk To Dignity" is the first episode in the series where Macho Man Randy Cuyler appears in without Tammi.
- In "One Man Banned", Bobby mentioned that he and Tammi went to the same public school.