Harriet Arnold
Harriet 310
First seen "Imperfect Circles"
Last seen "Legacy"
Series lifespan "Imperfect Circles" to "Legacy"
Appeared in 4 episodes, (see below)
Portrayed by Megan Ketch

Gender Female
Hair Blonde
Age 28
Occupation Unknown
Family Greg Bigelow - Husband
Alice Bigelow - Daughter
Status Dead
Cause of Death Shot in the head by Norrie.
Harriet Death
Harriet Arnold Gallery
"You're a threat to Eva's baby, Julia, and you must be taken care of."
—Harriet's last words to Julia while under the influence of The Kinship.[src]

Harriet Arnold was a supporting character in CBS' Under the Dome. She was a resident of Chester's Mill and was the previous wife of Greg Bigelow. She had a baby named Alice Bigelow while under the dome and was the neighbor of Julia Shumway.

Before the DomeEdit

Barely anything is revealed about Harriet's life before the Dome came down. Harriet's husband, Greg, was a soldier on a deployment through most of Harriet's pregnancy. He was scheduled to be back before baby was born.

Under the DomeEdit

Season 1Edit

"Imperfect Circles"Edit

On the seventh day, Harriet went to Julia's house asking for yogurt, as there were none left after the food-mart was raided and that it's the only thing that she can keep down. Julia looks down at her belly and says only a month to go, with Harriet replying 6 weeks. Harriet tells Julia that Greg's deployment was supposed to over in time for the baby to be born, but with the dome she doesn't know. There, she briefly met Barbie and Julia tells Harriet that she thinks she has the yogurt she was looking for.

Upon leaving Julia's house, Harriet hears a voice calling her, and when she looks to her left she sees an apparition of her husband, Greg. Rushing to greet him, Greg puts his hand out and Harriet touched the Dome. Harriet went into labour immediately after, and when she looked up Greg disappeared, while calling for Julia. Julia runs outside and tells Harriet that it's just her water breaking, and when attempting to take Harriet to the clinic in her car, they were held at gunpoint by Waylon Dundee, while his brother Clint syphons their gas. Barbie arrived to drive off the Dundee brothers, but informed them the clinic was closed. Julia suggested they go to the McAlister house to see Alice Calvert. Alice began to help Harriet through the delivery, though she herself began to feel ill from her insulin deficiency. Harriet gave birth to a baby girl that she named Alice to honor her. Alice Calvert died shortly after of a heart attack.

Season 2Edit


Harriet is first seen entering the Sweetbriar Rose and begins to talk to Big Jim and Barbie about how many people there are at Sweetbriar Rose and how the town is lucky to have Big Jim take care of them. She is later seen at the church when Tom Tilden asks her why his pigs had to die. Harriet tells him that there are sometimes no answers to things and that he should just stay hopeful.

Season 3Edit

"Plan B"Edit

Harriet is sitting in a chair while holding her baby Alice when Christine walks by and greets them. Christine and Harriet later walk up to Eva and tell her that Harriet will be Eva's mid-wife. Eva suggests they wait for Barbie, but they insist that they go to the place where Eva will give birth.


Harriet brings Charlotte Chastain to Eva as the first sacrifice. She later finds Julia and tells her that she is a threat to Eva's baby and needs to be taken care of. She tries to call the guards, but Norrie comes out of the woods and shoots her in the head.


Season 1 appearances
"Pilot" "The Fire" "Manhunt" "Outbreak" "Blue on Blue"
"The Endless Thirst" "Imperfect Circles" "Thicker Than Water" "The Fourth Hand" "Let the Games Begin"
"Speak of the Devil" "Exigent Circumstances" "Curtains"
Season 2 appearances
"Heads Will Roll" "Infestation" "Force Majeure" "Revelation" "Reconciliation"
"In the Dark" "Going Home" "Awakening" "The Red Door" "The Fall"
"Black Ice" "Turn" "Go Now"
Season 3 appearances
"Move On" "But I'm Not" "Redux" "The Kinship" "Alaska"
"Caged" "Ejecta" "Breaking Point" "Plan B" "Legacy"
"Love is a Battlefield" "Incandescence" "The Enemy Within"
TV Series Characters
Barbara/Cross Family BarbieDawnLauraMelanieDonBarbie's Mother
Rennie Family Big JimJuniorSamPauline
Shumway Family JuliaMaryPeter
McAlister Family JoeJackSteveFrankMrs. McAlisterAngie
Calvert Family NorrieMichaelCarolynAlice
Sheriff's Department CarterDellJackieGeorgiaLindaPaulFreddyDuke
WYBS Radio Station PhilDodee
The Clinic ChrisLindaAdamsBeth
Sanders Cement Works DuncanVictorAntoineJamesJarkLowellMarkColeCarsonKeith
Chester's Mill EricGregRogerAliceAudreyAidanDennyRodgerBernieSarahTommyIdaDresTerrySparkyScottyKayTedLarryMilesKillianDarrenSusanMichaelRosaGregBonnieTerryAlLarryTootBurtWallyAmyKyleRonaldHarrietCharlottePeteAbbyBenAndreaRebeccaTomLyleBethWendellMr. DamburgMr. FelmanOttoOllieMr. CunninghamBoomerClintWaylonRayRoseLesterMrs. MooreMyraScottJaniceEricJerryKevinPaulAllisonStephanieIvanGlennAnnMarshallJuneNoahConnieAmandaDonnaGaryPhilipBonnieJerryJustinAmyMelindaStevenGeorgeIreneMorganMildredJasonLeeNadineAmberBruceAliceKarenAdamVirginiaAraceliDrewMiltonSandraEvelynAnnCodyBrendaNicholeJosephDonnaEdwardLeonAlanBrandonSallyJohnNicholeJohnCarolJeffreyAdaTaraDouglasLoriRobertRolandFeliciaNancyCarlMorrisBillCharlesEileenJohnLeslieMelAshleyBryanAlanRoseCliffordTinaMargaretLindaSusanneDerrickClydeCherylAmyShirleyDonnaDennisJoshuaPhilipChuckClaudetteLloydBetsy
Military BlakeClemmensSmithJonesStricklandWalkerAndersonGlorElemmersPracht
Aktaion Energy HunterLilyPatrickChristineHektorDavaEvaBeauMartinMarstonMalick
Outsiders JeffPhil's SisterDodee's MotherAndrea's SonRickMiguelTrevorJudyMaxineAgatha
Animals IndyTruman
Alive characters appear in green. Dead characters appear in red and italics. Unknown characters appear in blue.