Sopal and Caillon won their fifth dance-off on Sunday, putting fellow actor Alex Kingston out of the competition.
The actor, who has played Suki Panesar in EastEnders since 2020, was born and bred in the Medway towns.
She said: “I love where I come from.
“I just want to be able to represent Gillingham and the Medway towns in this competition.
“I’m proud of where I come from. Let’s do this for Medway.”
Sopal added on Instagram that she had “come back fighting” after finishing in the bottom two so many times.
“Your investment in us means more than anything in the world,” she said.
“Your gorgeous messages of support humbles my heart.”