This question has been addressed in 1 Texas court opinion:
COA14 — February 24, 2026
In Mergel v. Bigby, a former city official attempted to appeal a judgment that found she had committed unauthorized (ultra vires) acts. Although she was sued only in her official capacity, she filed the appeal in her individual capacity after leaving her position. The Court of Appeals analyzed the 'legal persona' doctrine, which dictates that a person in their official capacity is a distinct legal entity from that same person as an individual. The court held that because she was never a party to the lawsuit in her individual capacity and no longer held the office to appeal in an official capacity, she was a 'legal stranger' to the judgment and lacked standing to appeal.
Litigation Takeaway
“An official sued only in their official capacity cannot personally appeal a judgment after leaving office; to protect their individual interests or reputation, they must formally intervene in their individual capacity while the trial court still has jurisdiction.”