Alfred Vargas as Erebus – a young merman with royal blood descent who will be secretly in love with Dyesebel.
Marco Alcaraz as Usaro – Dyangga’s assistant and lover who will also be secretly in love with Dyesebel.
Paolo Ballesteros as Bukanding – Dyesebel’s merman friend whom she will treat as her brother.
Wendell Ramos as Tonio – the father of Dyesebel.
Aljur Abrenica as Paolo – a fisherman who will fall in love with Shiela Mae (the character of Kris Bernal).
Hero Angeles as Mark – Paolo’s fisherman brother who has a grudge against Fredo’s family.
Luis Alandy as Gildo – a model who will be Fredo’s rival.
Dingdong Dantes as Fredo – a multi-media mogul so full of himself that he doesn’t know the meaning of love. But when he got the chance to get a glimpse of Dyesebel’s beauty, he hopelessly falls in love with her.