Warning: Spoilers ahead for Doctor Who season 15, episode 4, "Lucky Day."After making their franchise debut during David Tennant's Doctor Who comeback for 2023's 60th-anniversary celebrations, one character was missing from the Doctor Who season 14 cast, but has thankfully now returned to the fold. The brief era of the Fourteenth Doctor introduced Doctor Who's new UNIT team, after years of the organization consisting primarily of short-lived and interchangeable characters. The show's Disney era quickly added a level of consistency to this portion of Doctor Who's worldbuilding, but one of the new additions didn't return for Gatwa's first run as Fifteen.