The character was introduced as a captain in the British special forces and the ex-fiancé of protagonist Georgie Lane (Michelle Keegan).

Elvis's storylines in the series included his friendship with 2-Section's commanding officer Captain James (Ben Aldridge), struggling with his lingering feelings for Georgie, and his eventual death in battle.

Two years later, his old friend Captain James (Ben Aldridge) requests help from the special forces to storm a Kenyan Al-Shabaab base after Georgie is abducted by a faction of the group.

Elvis and his unit are called to help when intel indicates that Abu and his associates are to perform a series of terrorist attacks across Manchester.

Georgie puts together that Abu has actually been planning to target his ex-girlfriend Saira's (Dinita Gohil) university graduation as revenge for breaking up with him.

Sometime later, special forces are notified of a lead to a Taliban commander named Aban Omar, with 2-Section, Georgie's team, set to support them on a mission through Afghanistan to extract him from a compound.

[1] Elvis was billed by the BBC as a "cheeky chappy Londoner" who is "fearless, impulsive, self-confident, determined and cool under pressure".

[6] In an interview with What's on TV, Pasqualino billed Elvis as an "alpha male" and, as a special forces commander, "slightly more hardened" than the characters of 2-Section.

[5] Speaking of boot camp training for the series, the actor compared it to the preparation he underwent to play D'Artagnan in The Musketeers, as both included many drills, handling of weapons, and nonverbal hand signals.

[6] Pasqualino also voiced delight in filming in Cape Town, South Africa, recounting that the actors were often allowed to explore and that he found the city beautiful.

[7] Commenting on his character's relationship with Georgie, Pasqualino explained that it started with the two being "madly [...] in love with each other", but quickly ended after an event on their wedding day.

[8] Keegan had previously expressed that Georgie would "still [believe] they can't be together" when Pasqualino added that Elvis would want to "reconcile" with her as he was "head over heels in love" with her.

[9] Grounds came to the decision that Elvis would die in battle, a fate which he felt was a fitting end to the character as "he's quite close to death all the time" due to his job.

[14] Morgan Jeffery of Digital Spy noted that fans were "left heartbroken" by Elvis's death, calling it "explosive" and a "shock".

[9] Jeffery's colleague, Justin Harp, showcased both angry and devastated Twitter reactions from many viewers, with some promising to stop watching after the death.