Joanna Helm is a fictional character from the BBC soap opera Doctors, portrayed by Sarah Manners.

Her exit storyline sees her leave Riverside after helping her grandmother, Jessie Helm (Marcia Ashton), die in a euthanasia pact.

the Sunday Mail said that despite Doctors' early afternoon slot, Joanna "was involved in mercy killing, drug addiction and a suicide attempt to name but a few of her spicier plotlines".

She reflected on her time on Doctors via Instagram, where she wrote: "I was utterly thrilled to have been cast as Joanna Helm, the dizzy receptionist!

Joanna gets upset when she is reprimanded by practice manager Kate McGuire (Maggie Cronin) for her fashion choices for work, since she feels as though her personality is being limited.

Kate's husband and surgery partner, Mac McGuire (Christopher Timothy), is not sympathetic with Joanna and reprimands her harshly.

She helps Jessie to reconnect with her son and Joanna's father, Jack Helm (Jim Dunk), since the pair had fallen out years prior.

[6] When it was announced that Manners was to join Casualty after she had departed the show, the Sunday Mail wrote: "that spells trouble for everyone if her medical record is anything to go by".