Character Relationship Map: Siren

Characters

• Ryn (played by Eline Powell) — protagonist

  A mysterious young woman and primal hunter from the deep sea who comes to Bristol Cove searching for her captured older sister. She later has a daughter whose protection becomes critical, and her stem...

• Ben Pownall (played by Alex Roe) — protagonist

  A marine biologist who works with Maddie Bishop to investigate Ryn and the forces that brought her to land. His paralysis is gradually counteracted by Ryn's mermaid stem cells, and he later helps cont...

• Maddie Bishop (played by Fola Evans-Akingbola) — supporting

  A marine biologist who works with Ben Pownall to discover what drove Ryn, a deep-sea hunter, to Bristol Cove. In the third season, she helps Ben and Ryn confront Tia and protect Ryn's daughter.

• Xander McClure (played by Ian Verdun) — supporting
• Helen Hubbell (played by Rena Owen) — supporting
• Nicole Martinez (played by Natalee Linez) — cameo
• Katrina (played by Aylya Marzolf) — cameo
• Levi (played by Sedale Threatt Jr.) — cameo
• Viv (played by Alvina August) — cameo
• Sarge (played by Hugo Ateo) — cameo
• Deputy Marissa Staub (played by Tammy Gillis) — cameo
• Donna (played by Sibongile Mlambo) — cameo
• Ted Pownall (played by David Cubitt) — cameo
• Robb Wellens (played by Deniz Akdeniz) — cameo
• Sheriff Dale Bishop (played by Gil Birmingham) — cameo
• Chris Mueller (played by Chad Rook) — cameo
• Aldon Decker (played by Ron Yuan) — cameo
• Elaine Pownall (played by Sarah-Jane Redmond) — cameo
• Rick Marzdan (played by Brendan Fletcher) — cameo
• Susan Bishop (played by Garcelle Beauvais) — cameo

Canonical Relationships

Family, romantic, and professional connections based on plot evidence.

• Ryn → Donna (Sisters) — Their sisterly bond motivates Ryn's efforts to protect Donna and reconnect with her colony.

  "Ryn says Donna is her sister, explains that Donna cared for her after their mother died, and seeks help when Donna is alone and hungry."

• Ben Pownall → Elaine Pownall (Son and mother) — Elaine's illness and treatment are a major personal motivation affecting Ben's decisions.

  "Elaine's health worsens in Season 2, and she seeks military treatment using mermaid cells; Ben is involved in choices surrounding treatment and conti...

• Ryn → Ben Pownall (Romantic partners and allies) — Their bond combines romance, cooperation, and shared responsibility for threats to merfolk and humans.

  "They investigate the mermaid mystery together in Season 1, share a romantic farewell in Season 2, and grow more intimate in Season 3."

• Maddie Bishop → Susan Bishop (Daughter and mother) — Susan's return reopens a complicated family relationship for Maddie.

  "Maddie is reunited with Susan after Susan returns following years away, and Maddie later tries to help her in a dangerous situation."

• Maddie Bishop → Sheriff Dale Bishop (Daughter and father) — Dale's family role connects him to the personal consequences of Maddie's efforts to help Susan.

  "Dale is identified as Maddie's father, and Season 2 describes him coping with fallout from Maddie's encounter with a man from Susan's past."

Story Dynamics

Alliances, conflicts, and narrative interactions that evolve throughout the story.

• Ryn → Maddie Bishop (Close allies) — Maddie remains one of Ryn's most dependable human allies and helps her navigate life on land.

  "Maddie helps rescue Ryn in Season 1, helps protect and support the mermaids in Season 2, and helps Ben and Ryn confront Tia and protect Ryn's daughte...

• Ben Pownall → Xander McClure (Friends and collaborators) — Their friendship is tested by dangerous choices but supports repeated cooperation.

  "They return to the sea together to search for answers in Season 1, reconcile and work together to get the mermaids back into the water in Season 2, a...

• Ryn → Xander McClure (Grief and accountability) — Their relationship is marked by Ryn's grief and Xander's attempt to account for his actions.

  "In Season 2, Xander apologizes to Ryn for killing her sister, and Ryn refuses to accept his explanation."

• Ryn → Helen Hubbell (Trusted allies) — Helen supports Ryn through merfolk-related crises and the challenges of raising her child.

  "Helen and Ben search for the hybrids in Season 2, and Helen helps Ryn adjust to life on shore and asks to teach her about motherhood in Season 3."

• Ryn → Elaine Pownall (Biological treatment connection) — Ryn's biology becomes part of treatment efforts affecting the Pownall family, with consequences for mermaids.

  "Elaine seeks treatment using mermaid cells in Season 2, and Ryn's stem cells help counteract Ben's paralysis according to the character profile."

• Ben Pownall → Levi (Mentor and learner) — Ben helps Levi understand human behavior during the mermaids' attempt to adapt to land.

  "Ben mentors Levi as Levi tries to learn how men behave on land."

• Ryn → Katrina (Leadership rivals) — Their competing approaches create tension within the mermaid group.

  "Katrina tries to win the mermaid pack to her side in Season 2, while Ryn faces a leadership challenge and insists she remains strong enough to lead."

• Ben Pownall → Helen Hubbell (Family-history investigators) — They cooperate in investigating threats and uncovering family and merfolk history.

  "Helen and Ben search for the hybrids after one mermaid is taken to a remote location, and they later investigate a Coast Guard report connected to th...

• Ryn → Robb Wellens (Potential intertribal ally) — Robb's disclosure gives Ryn and her allies a possible connection to a separate merfolk community.

  "Robb reveals that he belongs to another merfolk tribe, explains that his isolated community had no connection to the attack on Ryn's people, and says...

• Ryn → Sarge (Warning and looming threat) — Sarge's warnings and death rituals frame the approaching conflict among the merfolk.

  "In Season 3, Ryn sees Sarge beneath the surface again and receives his warning that war is coming; his followers later prepare to reclaim his body an...

Story Analysis

The series follows Ryn's movement between the sea and Bristol Cove as human discovery, environmental threats, medical experimentation, and conflict among merfolk reshape her alliances and responsibilities.

Plot Progression

1. Season 1: The Mermaid Arrives — Ryn's arrival leads Ben and Maddie to investigate the strange events around Bristol Cove. The search for answers reveals danger to Ryn's people and brings human authorities and the military into the c...
2. Season 1: Colony in Crisis — Ryn seeks help for a starving colony while Donna and other mermaids become involved in the town's escalating crisis. The siren song and rising danger leave human and mermaid lives increasingly entangl...
3. Season 2: Divided Waters — Ryn stays on land as the mermaids face habitat loss, a leadership challenge, and growing difficulty hiding among humans. The oil company's activity pushes humans and mermaids toward a risky alliance.
4. Season 2: Exposure and Change — The oil-rig attack has lasting consequences, while military agreements and medical trials make mermaid biology a source of both hope and danger. Hybrid history, reproduction, and the exposure of merma...
5. Season 3: War Approaches — The consequences of experimental treatment and earlier choices surface as Ben and Helen investigate family history. Ryn faces injury, territorial threats, and warnings that war is coming.
6. Season 3: Survival and Protection — Ryn returns with her daughter as the threat to her people intensifies and her colony is destroyed. Ben, Maddie, and their allies face the challenge of protecting the child and preserving a possible pa...