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Zac Blakely

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Zac Blakely
Full Name

Zac Blakely





Resides In

Lives in Zac's Garage


Lifeguard (formerly)


Suncoast High


Rob Blakely (adoptive father)
Mrs Blakely (adoptive mother)
Nerissa (biological mother)


Mimmi (biological sister)


Evie (girlfriend)


Cam (best mate)
Sirena (friend)
Nixie (friend)
Ondina (friend)
David (friend)
Carly (friend)
Erik (ex-good friend/both are mermen)

Eye Color


Hair Color

Dark Brown


Speed Swimming
Volume Reduction


1, 2, 3

First Seen


Portrayed By

Chai Romruen

Zac Blakely is the main character in Mako: Island of Secrets. He was born as a merman. His real mother was one of the most powerfull mermaids named Nerissa, as well as his sister Mimmi. Zac discovered his powers and true form, after accidentally falling into the moon pool during a full moon, and forming a strong connection to Mako Island

As the show begins, Zac is typical teenage boy growing up on the Gold Coast. It seems as though he's got a picture perfect live, getting good grades, having parents who allow him to do what he wants, and a gorgeous girlfriend, Evie. This idea of a perfect life comes to a halt when he goes camping on the night of a full moon with his best friend Cam at Mako Island. Zac takes off in the forest to "take a leak", when he's done, an opening to a cave appears. He begins exploring the area when he comes across a glowing wall, with a tridon symbol positioned in the center. His curiosity takes over him and he reaches out to touch the mysterious symbol. The solid ground around him starts to turn to jelly as he slips through the ground into the moon pool. The spell keeping Zac from forming a tail was broken. The following morning, Zac wakes up on the beach, with only the memory of discovering the opening to the weird cave, nothing else. He immediately finds his best friend, explaining to him that he wants to leave the island as soon as possible. Cam doesn't understand why until later.

Zac strongly believed something odd happened on Mako Island that night, and when he returns to the main island, he discovered he can bend water. After the initial shock, he runs off the inform Cam of his new ability. When Zac attempts to show Cam his discovery, it doesn't work. As Cam walks away, Zac attempts again, causing him to get wet and he falls into the water. Soon after he hit the water, his tail formed, Zac is shocked by this and rushes away from the situation. He decides to show Cam his new abilities and Cam quickly becomes fascinated. As Zac's ego grows, he starts to see himself as a better person than everyone else. Cam's interest and motivation to support his friend quickly turn to jealousy. This becomes clear when the negative side of being a merman begins to take a toll on Zac. As it beomes harder for Zac to keep his secret, it becomes harder for Cam to help him and Zac starts taking his frustrations out on Cam.

On the same night Zac fell into the moon pool, there were three mermaids who were supposed to guard the moon pool during the full moon ceremony in which the pod took place in. The three mermaids where cast out of the pod when the council found out they had let land people onto the island and into the moon pool. The pod fled, leaving Sirena, Nixie and Lyla around Mako Island on their own. Before they left, Sirena's sister left her with her moon ring to protect herself. They three mermaids decide that they need to revoke Zac's powers in order to bring their pod back to Mako Island.

Zac decides to promise Evie and the girls to give up his powers since it hurts him to lie to Evie. At the end of series one, Cam has betrayed Zac by attempting to go to the moon pool on a full moon with the trident. With Zac's help, the mermaids are able to stop Cam and he breaks the trident. But after it was all done, Zac didn't lose his powers during the full moon. Zac breaks the friendship with Cam, and Nixie, Lyla and Sirena are friends again. Evie accepts that her boyfriend is a merman.

Season 2

In season 2, things seem to be going perfect for Zac. He did lose a friend, but is still happy with the way it goes now. he is now completely happy being a merman since he no longer has to lie to his girlfriend Evie. Soon however, things in his life get complicated. The seventh full moon since Zac became a merman is about to come, and two new mermaids Ondina and Mimmi decide that they must take away his powers before he enters the seventh cicle. These mermaids goal is to finish what Sirena began. There are also more complications with Zac's growing connection to Mako. This includes a discovery of an ancient old Merman Chamber which also attracts Erik's interest. Zac awakens it by moving his hand over a rock with some blue glowing symbols, which includes symbol of a moonrise, an island, a full moon, the moon pool, and a trident. It becomes clear that Zac is the only one capable of controlling the chamber, and he becomes obsessed by finding out it's purpose, and why he is connected to it. Also in this season, Evie becomes a mermaid. Zac wants to help her. He even wants to take her on a swimming, but she doesn't want that in the first place. Zac get's visions. He sees what Mimmi sees when she's afraid. They are wondering why. They discover that it's not the island at all, but their bloodline. Mimmi is actually his long lost sister. Zac learns that he was actually born as a merman and that he is the son of Nerissa, the most powerful mermaid to ever exist. This discovery is too much for Zac and he begins pushing those close to him away. His whole life was a lie. His mom is not his mom, his dad is not his dad. Eventually, he learns to accept who he really is after Mimmi reminds him that he has a family who cares for him and that they loved him treated him as their real son. He then reconnects with all the people he cares about, including Cam and, accepts Mimmi as his sister. after this, the connection between him and his newfound sister is growing very strong throughout the second half of season 2. Both of them seem to be extremely caring and protective to each other.

Throughout the second half of season 2, Zac's curiosity of the chamber grows and he continues to seek it's purpose,but at the same time he wants to make sure that Mimmi and all the mermaids are safe. He later finds out from Rita that he and Mimmi are descendants of the merman that built the chamber and that a merman refused to activate it after falling in love with a mermaid. This causes Zac to have second thoughts about trying to activate the chamber. He and the others discover that typing the right code is only the first step to starting the chamber and that the trident must be placed within it. Since Zac already destroyed it, all seems well, until Erik finds out that the stone is needed to activate the chamber, and not the trident. Erik learns from Sirena that she hide the stone at Rita's. Erik finds it, and takes away Zac's powers(not his tail). He activates it again. The mermaids try to stop Erik, but they fall unconscious on the ground, including Ondina. Ondina is the person that Erik loves, so he tries to shut the chamber down when he sees that Ondina is not doing well, but he fails. Zac is hurt, and lying on the ground of the chamber. He tries to deactivate the chamber, and he succeeds, but with no mercy. Zac falls unconscious, and doesn't wake up. But Mimmi is able to use the stone to restore Zac's life and his powers, to everyone's great relief, Zac wakes up. Veridia sees that Zac is no threat, and shows respect. The pod returns, and Zac is now also a part of the Mako pod, however, he doesn't get a moon ring from Veridia. It's unknown why not. Evie does get a moon ring from Veridia. She's the first landgirl-mermaid to receive this honor.

Season 3

In this season, Zac actually doesn't really plays the main character of Mako Mermaids in the beginning. A girl named Weilan, who lives in China, flees to Rita, because she's threatened by a water dragon. This dragon can take away a mermaid and merman its tail and powers, and is meant to destroy pods. But the dragon follows her. She hears about Zac from Mimmi, and is very excited to meet Zac. During this season, Zac manages to learn a Chinese trick from Weilan, Turning The Tide. He hopes that he can destroy the dragon with this trick. On a full moon, he manages to get the dragon inside the moon pool. But he's shocked when he sees Evie there, waitin for him. Evie loses her powers and her tail. Later in the season, Zac and his sister Mimmi, discover that the dragon could be their mother, so they go to Veridia, to beg her to not attack the dragon. But Veridia doesn't see another way out, and has no mercy. Weilan finds out that they need a bracelet to break the spell, and free Nerissa, Zac and Mimmi's real mother. But Rikki Chadwick has the bracelet, and she's not planning to give the bracelet to the mermaids. Zac distracts the security, so Weilan, Ondina and Mimmi can go talking with Rikki again. She again says that she's not planning to give the bracelet to the mermaids. But when Ondina and Weilan go talking to Rikki again in the moon pool, they manage to convince her to give them the bracelet. Zac wants to take the bracelet, but Mimmi is the one who finally gets the bracelet. She goes together with Zac, Weilan and Ondina to the dragon, and she breaks the spell. Zac is screaming Mimmi's name, until he sees her with Nerissa. Nerssa hugs Mimmi and Zac, and tells them what happened.


Zac is a tall and smart guy. His skin is a little bit darker than a white person, but not that much. He is a muscular guy and he is a merman. His tail is ocean blue. He has a sister in the series called Mimmi. His real mother in Mako Mermaids is Nerissa.


Zac possesses the ability to transform into a merman ten seconds after touching water.

Speed Swimming

As a merman, he has the ability to swim at super speed of 600km/h, hold his breath for at least 20 minutes, and dive at a depth lower than the deepest divers in the world.  After drying off his tail, his body transforms back to human form.


In "Dolphin Tale", he startsa funny situation with Joe's boat, and starts moving it with his powers. In "Zac's Return to Mako", when he is under the influence of the Full Moon, Lyla tried to stop him from reaching the land entrance and he pushed her using this power. 


When he is showing Cam that he turned into a merman, he creates a ball made out of water and throws it at him.


In "Zac's Pool Party", Zac is shown using this power to heat up the pool and it evaporates so he can try and cancel Evie's pool party.


After his first Full Moon in "Zac's Return to Mako", he is now able to become invisible like the girls. In "The Siren" Zac turns invisible so Mrs. Santos doesn't see him in her office. In "Truce" and "Nowhere to Hide" he uses this power so he doesn't caught in the cafe and the warehouse.

Volume Reduction

Zac used this power to improve Cam's and Carly's singing in "Sirena's Secret".



 Zac is very fond of Evie and cares very much about her and wants to be a good boyfriend. Their relationship becomes very strained because Zac is hiding his secret from her, and even more when Lyla and Zac become close friends. Evie is the only person he does not want to discover his merman side for fear of losing her. She later finds out to her amazement about his tail when he is forced to save her from drowning in Betrayed. During season 2, they continue to date and grow closer as best friends and as a couple. They grow even more close when Evie accidentally becomes a mermaid after attempting to save him from a new group of mermaids in the town. She continues to support him and offered him emotional support after he found out about his adoption. She also loses her tail in season 3 because she's hit by the dragons fire breathe. This fire breathe can take away merpeople their tail and powers.


 Zac and Cam have been best mates from the time they were young children. At first look, Cam is very supportive of his friend and helps him keeping Zac's secret hidden from Evie. Until "Zac's Pool Party" when Cam get tired of covering for him and shoves him into his pool, Zac's secret exposed to the three undercover mermaids. Later, they make up and Cam starts helping Zac to get the trident. Later, Cam grows even more jealous of his friends powers and is outraged when Zac puts the trident back into its chamber. Finally, he tries to become a merman, but is unsuccesful and in the end he is on his own. After Cam helps Zac in season 2 with other oceanic issues, they finally reconnect their friendship, though they aren't as close as they were.


Zac's girlfriend Evie gets jealous of Lyla after seeing them 'cuddling' on the jetty. Lyla and Zac become really close after she and the other two mermaids 'accidentally' discover he is a merman. Zac always feels the most comfortable around Lyla and they form a very close bond. Zac may yet discover he has feelings for her later on. However, since Lyla was not seen for seasons 2 and 3, their friendship is now distant. Lyla ends up moving on with Nixie by joining another pod. For more on their relationship go to - Zac and Lyla


She is Zac's sister. During the seventh cycle Zac began to have visions of Mako Island, and the trident chamber along with Mimmi who is able to see them as well. Rita finally revealed that Zac is Nerissa's son, and Mimmi's brother. And Mimmi is able to share visions from their bloodline. He couldn't accept Mimmi as his sister or the truth of his bloodline. They share a mind connection. But Zac doesn't want to been involved with any of it.


The image gallery for Zac may be viewed here.  .

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