Triton made his live action debut in the Marvel Cinematic Universe (MCU) with the 2017 television series Inhumans, portrayed by Mike Moh.

[1] Triton is member of the Inhumans' Royal Family, son of Mander and Azur, brother to Karnak, and cousin to Gorgon, Black Bolt, Maximus, Medusa, and Crystal.

The mists altered his body, turning his skin green and giving him the ability to breathe underwater, as well as surviving the cold temperatures and incredible pressures of the deep.

As a result, he lived in a specifically designed area of Attilan, requiring a special breathing apparatus to leave the water.

[14] He traveled to New York City with the Royal Family seeking aid for the earthquake threatened Attilan, and battled Shatterstar.

[23] He accompanied Medusa to Earth when she fled Attilan to avoid compulsory abortion by order of the Genetic Council.

[25] Triton has maintained a friendship with Namor the Sub-Mariner and has occasionally been involved in stories with Marvel's other ocean-dwelling characters.

He had pivotal roles in major crossover stories such as the Kree–Skrull War[volume & issue needed] and Atlantis Attacks.

[volume & issue needed] Triton expresses discontent to Black Panther and Storm when they visit Attilan's current moon location.

[volume & issue needed] During the Secret Invasion storyline, the Inhuman royal family forges an alliance with the Kree to recover Black Bolt from the Skrulls' clutches.

His breathing harness is then upgraded by the Kree allowing him to operate in the vacuum of space, thus enabling him to physically attack the Skrulls' ship during the rescue.

[27] During Civil War II, Triton grows discontent with Medusa's dovishness to Tony Stark's aggression against New Attilan.

[28] During Inhumans vs. X-Men, Maximus free Triton from the Triskelion with the promise of finding a way to recreate Terrigen Crystals.

[31] It is later revealed that Triton is alive and in stasis alongside Naja, Sterilon, and other unnamed Inhumans as they are being experimented on by the Kree.