https://screenrant.com/ncuti-gatwa-barbie-sex-education-doctor-who-role-avoid-capaldi-mistake/

From Sex Education to Barbie, Ncuti Gatwa (https://screenrant.com/doctor-who-ncuti-gatwa-first-black-doctor-response/)'s reputation precedes him ahead of Doctor Who, making him the fun Doctor that Capaldi wasn't allowed to be.