He was introduced as a former colleague of Michelle Walton's (Joanna Bending), who suggests that he comes to work at the fictional Mill Health Centre as a doctor and partner due to the surgery's funding issues.

He pushes Kirsty Millar (Kiruna Stamell) out of the surgery for being disabled, targets Luca McIntyre (Ross McLaren) for being gay, dismisses Michelle Walton (Joanna Bending) for declining his advances and assaults Scarlett Kiernan (Kia Pegg) since she does not respect him.

[5] Graham is introduced to doctor Zara Carmichael (Elisabeth Dermot Walsh) as an old colleague of Michelle Walton (Joanna Bending).

[7] Michelle is "thrilled" when Graham arrives at the Mill, as well as receptionist Paige Popplewell (Genevieve Lewis) taking a liking to his charm.

[9] Initially billed as someone that would save the Mill Health Centre from closing down, it "quickly became apparent that he isn't quite the shiny new hero some might have hoped for".

Avery has talked about the discomfort he felt in acting ableist to his co-star, including a scene where he had to physically move Stamell by putting his hand on her head.

[10] Graham then calls nurse Luca McIntyre (Ross McLaren) queer in a derogatory manner, which Al Haskey (Ian Midlane) reprimands him for.

[11] He raises "red flags" at his first partners' meeting with Zara, doctor Suni Bulsara (Rahul Arya) and buainess manager Bear Sylvester (Dex Lee) when he learns there is a staff member with HIV and immediately assumes it is Luca, who is the only gay man within the surgery.

[14] It was originally believed by Avery and other crew members that Graham had an issue with gay people due to being closeted, but it was later explained that he is just a bigot.

[16] Graham then insults and bullies Luca's friend, Skye Williams (Shane Convery), who is interested in working in healthcare.

"[4] When he noticed a subliminally racist line said to Suni, Avery did not want to say it, as he was unaware that Graham would eventually be developed into a bigot.

[4] In October 2024, his former home life is explored when the soap introduced his wife, Katie (Emily Joyce) from whom he is separated, as well as his child, Jay (Lottie Webb).

[22] Graham upsets lesbian patient Kerry Bedford (Sally Frith) by making judgemental comments about her lifestyle, as well as refusing her the contraceptive pill for free, claiming she must pay since she is not having heterosexual sex.

[23] Scenes show Graham finding out personal information about Luca, such as his involvement in the death of his boyfriend, Billy Parker (Daniel Cornish).

[24] When Zara is diagnosed with functional neurologic disorder (FND) and cannot come into work, Graham manipulates her into making him the acting senior partner.

Avery remarked on a podcast that the character of Graham was shaped to represent the BBC due to the events that unfolded between them and the Doctors cast and crew.

[28] In his short tenure on Doctors, the Daily Record wrote that as a villain, he had "marked a significant shift" and "caused quite a stir".