Sienna is a minor character in the second season. She is portrayed by Luvia Petersen and debuts in "Many Happy Returns".

Sienna is a nomadic Grounder living in the Dead Zone with her husband, Osias, and son, Zoran.

Throughout the Series Edit

In Many Happy Returns, Sienna asks her son why the unconscious stranger, Thelonious Jaha, has been brought to their home. When Thelonious wakes, Sienna declares that outsiders are not welcome in their home and he must leave at once.

However, her husband Osias convinces her to let Thelonious stay until he has healed. During his stay, Sienna watches as Jaha bonds with Zoran. When Thelonious discovers Zoran's mutation, Sienna explains to him that in her village mutated humans are cast out to maintain the purity of the bloodline. But, she couldn't leave her son, so she left the village to raise him.

Later, it is revealed that Sienna only decided to let Thelonious stay so that they could collect a bounty out on Sky People. Sienna claims that Osias had gone to trade Thelonious for a horse, which would enable them to travel to the City of Light.

Personality Edit

Sienna cares deeply for her son, Zoran. She showed compassion for him and left her village to raise him. She is weary and unwelcoming to outsiders but is willing to listen to reason. She is strong willed and will help someone in need.

Physical Appearance Edit

Sienna has blonde hair with brown highlights. She has a ring through her septum and a tattoo on her cheek.

Relationships Edit


Zoran is Sienna's son. She has a strong relationship with her son and is willing to do anything to protect him. When Zoran was born with a mutation, she left her village to raise him.

Appearances Edit

Season Two
Episode Appearance Status
The 48 Absent
Inclement Weather Absent
Reapercussions Absent
Many Happy Returns Appears
Human Trials Absent
Fog of War Absent
Long Into an Abyss Absent
Spacewalker Absent
Remember Me Absent
Survival of the Fittest Mentioned
Coup de Grâce Absent
Rubicon Mentioned
Resurrection Absent
Bodyguard of Lies Mentioned
Blood Must Have Blood (Part 1) Absent
Blood Must Have Blood (Part 2) Absent

Notes And Trivia Edit

  • Sienna is the first person to mention mutated humans, also known as frikdreina.
  • Sienna is the first person to mention the City of Light.
  • Sienna is the second nomadic Grounder to be shown. The first was her son, Zoran.
  • It is unknown if Sienna and her family made it to the City of Light. While Jaha made it the mansion, Sienna's family is not mentioned.
  • The fate of Sienna and her family is still unknown, due to Praimfaya.

Gallery Edit

See Also Edit

The 100 Characters
Main Characters
Abigail GriffinBellamy BlakeCallie CartwigClarke GriffinEchoFinn CollinsJasper JordanJohn MurphyLincolnMarcus KaneMonty GreenOctavia BlakeRaven ReyesRoanThelonious JahaWells Jaha
Recurring Characters
AdenA.L.I.E.AtomAnyaBeccaBreeBryanByrneCage WallaceCarl EmersonCharles PikeCharmaine DiyozaCostaDante WallaceDavid MillerDiana SydneyEmoriFoxGeoff HardyHannah GreenHarper McIntyreHayesIlian‎IndraJacapo SinclairEric JacksonJake GriffinJohn MbegeJonesKara CooperKyle WickLexaLorelei TsingLunaMadiMaya VieMiles ShawNathan MillerNiylahNykoOntariPaxton McCrearyRileySeikuShawn GillmerShumwaySterlingTitusVera KaneZoe Monroe
Minor Characters
AdriaAnkaraArtigasAurora BlakeBrellCharlotteChrisConnorCostiaCraigCuyler RidleyDaxDelanoDerekDiggsDrewEthan HardyGideonGina MartinGlen DicksonGuaraGustusJordan GreenKeenan MykulakLeeNiaMelMylesNygelOsiasOtanPascalPeri GordonQuintRedReese LemkinRichardsRoma BraggScottSemetSiennaStevensTor LemkinTrinaTrisTristanTybeVincent VieWhitmanZoran