The Harry Potter performer appeared on the daytime programme to discuss her new novel at a promotional event held in Southend.
The 85-year-old stated that she had not intended to cause the presenter any mortification.
She explained that she had not previously encountered him and was unfamiliar with his identity until observing him in person.
She noted that his ethnicity became apparent upon seeing him.
She expressed that her curiosity centred on his perspective regarding the incident.
She did, however, proceed to employ terminology that is widely regarded as offensive towards individuals with disabilities.
She posed questions regarding the feelings of black people, brown people, people with disabilities, and those who are overweight.
She suggested that everyone experiences some form of self-reflection concerning their identity and how others perceive them.
She stated that her interest lies in ordinary people rather than famous individuals, and that understanding everyone’s background and formative experiences is what truly fascinates her.
The exchange in question occurred when she inquired what accent the 56-year-old presenter would consider typical for himself.
She responded by noting his mixed heritage and commenting on his black father and white mother.
The presenter promptly corrected her, indicating that both his parents are black.
She subsequently employed an antiquated American expression historically associated with describing black individuals of fairer complexion.
Following the incident, the presenter commented on BBC Radio 2’s Jeremy Vine programme on the social media platform, noting that one must be prepared for unexpected situations.