Rob Hollins is a fictional character from the BBC soap opera Doctors, portrayed by Chris Walker.

Rob's storyline in the programme has included disagreeing with Karen on aborting their baby, accidentally causing his wife's amnesia, suffering from post-traumatic stress disorder (PTSD), becoming a foster parent, being accused of police brutality, and the breakdown and reconciliation of his marriage.

Rob's PTSD was explored over the duration of a year with the climax coinciding with Mental Health Awareness Week in 2018, with the storyline being revisited in 2021.

Walker enjoys working with Pearson to portray Rob and Karen's marriage on Doctors and they have stated that despite their numerous breakdowns and reconciliations, the pair will always be strong as a couple.

It also explained that he is not the type of person to be intimidated by people in charge and that "if he smells injustice", he will ignore orders to do the right thing, even if it does not work in his favour.

She goes to live with her father but eventually tells Rob her plans to reconcile their marriage, and after saving her from a burning building, they recommence their relationship.

After she has recovered her memories and their children move out to attend higher education, Rob and Karen decide to become foster parents.

Bren Lee (Andrea Gordon), the mother of Karen's colleague Ayesha (Laura Rollins), is brought into custody at the police station.

Rob's colleague Emma Reid (Dido Miles) is shocked to find that Bren has died in police custody.

Rob, the sergeant on shift at the time, had a blackout when he was due to be checking over Bren, and he confides in Emma that he feels responsible.

Ayesha struggles to forgive both Rob and Emma, due to feeling that the pair are trying to cover up a case of police brutality.

Due to unexpectedly experiencing post-traumatic stress disorder (PTSD) from a brutal accident he witnessed years prior, he pushes Karen away and forms a close bond with colleague Harriet Shelton (Carley Stenson).

Despite being responsible for pushing Aaron down the stairs, Harriet allows Rob to be framed for the attack leading to him being forced into a break from work, which worsens his mental state and his marriage.

Walker had wanted an ex of Karen's to run her over and cause the memory loss, but producers decided that Rob would be responsible for the accident.

However, they did not want to have Rob experience a sudden battle with mental health within that week as they found that would be "counter-productive and unrealistic".

The PTSD begins after Rob and Sid Vere (Ashley Rice) witness a decapitation at the scene of a car accident.

They become foster parents to Ella (Lily-Mae Evans) and Tom Robson (Max True) after their mother is murdered and their father is imprisoned.

Walker stated that the situation would "cause friction" in their relationship and compared the different skills and ways that the pair deal with problems.

[10] Whilst on a crime scene, Rob pauses and Harriet is forced to cover for him; she asks why he blanked and he claims that it was a moment of old age.

[12] After Marvin Bulis (Philip Martin Brown) reveals that he saw the events, he gives a witness statement stating that Harriet pushed Aaron down the flight of stairs.

Described as "amazing" and an "absolutely outstanding performance", people felt that Walker deserved an award for his portrayal of Rob's grief.