Anita Dobson's character, initially introduced as Mrs. Flood, began as a seemingly small role in Doctor Who. First appearing as Ruby Sunday’s eccentric neighbor in "The Church on Ruby Road," Mrs. Flood unexpectedly captured viewers’ interest, especially after breaking the fourth wall to demonstrate her knowledge of the TARDIS.
Over the course of Ncuti Gatwa’s tenure as the Fifteenth Doctor, Mrs. Flood's appearances increased, culminating in the revelation that she was actually the Rani, a significant antagonist in disguise. This version of the Rani introduced a sharper, more stylish incarnation portrayed by Archie Panjabi, leading to a dramatic showdown with the Doctor and his allies.
In the episode "The Reality War," the Panjabi Rani is consumed by Omega, a monstrous first Time Lord. Interestingly, the younger Rani, brought into existence by this version, escaped the conflict, suggesting she could return in future episodes to stir trouble.
“For the first series, I was oblivious and just really enjoyed all the little character things and mannerisms that [showrunner and writer] Russell [T Davies] was throwing at me."
Dobson admitted she did not initially realize Mrs. Flood's true identity and enjoyed the subtle character touches crafted by the showrunner.
Dobson also expressed openness to the Rani returning in future Doctor Who stories whenever the show chooses.
Author's summary: Anita Dobson’s iconic Rani, initially disguised as Mrs. Flood, left a lasting impact, with future returns possible as the show evolves its complex Time Lord mythology.