Many PhD researchers have the opportunity to take up teaching responsibilities during their doctoral studies to enhance their employability and interest in academia. Aside from their formal teaching training, little is known about the types of resources and support from professional services that PhD students (PhDs) use to fulfil their teaching responsibilities. On the other hand, learning development is a relatively new profession within higher education. As such, there are varied perceptions on the necessity for PhDs with teaching responsibilities to engage with learning development support. This opinion piece shares the experience of a STEM UK PhD student with teaching responsibilities and a learning development practitioner when establishing support for modules taught by PhDs. Through a dialogue, the authors explore the challenges faced in the interaction between learning developers (LDs) and PhDs, in two different UK universities, and recommend how to further develop the relationship. Through this dialogue possible solutions like increasing the visibility of available LD support for PhDs with teaching responsibilities within higher education institutions (HEIs) and including LD support in PhDs teaching training were identified.