Richard "Rick" Marzdan is a recurring character in the second season of Siren. He is portrayed by Brendan Fletcher.

Rick is revealed to be the long-lost blood relative of Helen Hawkins; the third human to have merpeople blood in him.

Early Life

As a boy, he always knew how different he was from his sister and was deemed "crazy" by her when growing up.

Physical Appearance

A tall man with tan skin, brownish hair, blue eyes and reddish scaly marks on his right arm; the same Helen does on her left leg, indicating that he does have merfolk blood in him. Later on in Season 3, he grows a beard. 


Having lived a boyhood of isolation and estrangement, he is closed up and quite a loner.


Season 2

Season 3


  • He is the second human to be distantly descended from merpeople., who also hides the signs of that heritage from people who think of it as an "autoimmune response".
  • He reveals to Helen that he has a sister, Beth, who has shunned him because of his autoimmune condition, who has married and has two sons; eight-year-old Max and six-year-old Jake.


Season Two

  • "They know about art?"
  • "Wanna tell me what that was about?"
  • "All my life, you always treated me like a loser!! Well, now I know who I really am!! We're related mermaids."
  • "Can we talk about Mom and Dad, about all of this?"
  • "Helen has made contact with our kind."
  • "Believe me. They do exist."
  • "Maybe you're blowing this out of proportion."
  • "Out of desperation."
  • "How you know there's a key?"
  • "Helen, no."
  • "Can we talk more? About Mom and Dad?"
  • "Helen's made contact with our kind. The full-blooded ones from the ocean."
  • "They exist. Once I saw them, I knew."
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