'Euphoria' star Dominic Fike says his character was originally supposed to play the trumpet, but he asked to use a guitar instead

• Warning: There are spoilers ahead for the season two premiere of HBO's "Euphoria."
• Musician Dominic Fike told Insider that his character was originally supposed to play the trumpet.

"Euphoria" newcomer Dominic Fike said that he gave input regarding one element of his character, Elliot, on the hit HBO teen drama.

"Elliot was supposed to play the trumpet," Fike told Insider. "But I was like, 'Yo, I can't play the trumpet. Can I just bring my guitar?' And now he plays guitar! So I added that. That was cool."

"Do you know how annoying the trumpet is? That would have hurt everybody," he added.

Fike, known for hit songs like "3 Nights" and "Phone Numbers" with Kenny Beats, made his acting debut on Sunday night's season two premiere of "Euphoria."

In the episode, he meets Zendaya's character, a drug addict named Rue Bennett, while at a New Year's Eve house party. Rue, having relapsed after her best friend and crush Jules Vaughn (Hunter Schafer) briefly left town at the end of season one, catches Elliot snorting drugs in a laundry room.

"If you tell me what drugs you're doing, I'll tell you what drugs I'm doing," Rue tells Elliot, leading the two to immediately connect and get high together.

Later in the episode, Rue's heartbeat slows and she worries that she may be going into cardiac arrest. She instructs Elliot to give her an Adderall pill that's tucked in her sneaker and after a tense minute, Rue's heartbeat stabilizes.

Relieved, she calls Elliot her "new favorite person" and gives him a high-five for helping her.

Trailers for season two of "Euphoria" indicate that this isn't the last that fans will see of Fike's character.

It's revealed that he's also a student at East Highland High School and has an awkward introduction to Jules in the hallway. One scene shows Elliot and Rue dancing in a bedroom. Another shot from the first trailer shows Elliot playing the guitar as Jules sits on his bedroom-window ledge.

Fike told Insider that he received "the best advice" from his costars as he stepped into acting for the first time.

"They really helped so much," he said. "I couldn't have done it without them. I didn't take any lessons on it, so I really just relied on watching them the entire time."

"Euphoria" airs on Sunday nights at 9 p.m. ET on HBO.