The comic is currently back on screen as Geraldine Grainger in a mini-series of Vicar Of Dibley lockdown specials, which has prompted calls for a new, full series.
While that might appear unlikely due to a number of sad deaths among the in recent years, Dawn said she has already laid out an idea to the show’s creator Richard Curtis.
Dawn said: “Well, she is definitely in Dibley at the moment. She is married and she’s in Dibley.
“But I’ve always said to Richard Curtis, she would make a great Bishop. Come on!”
Ruth agreed, adding: “I can see you in the frock, definitely in the frock.”
The Vicar Of Dibley originally ran from 1994 to 2007, with some Comic Relief shorts airing in 2007, 2013 and 2015.
During the interview, Dawn also discussed her character’s tribute to Alice Tinker, after actor Emma Chambers died in 2018.
Geraldine moved viewers to tears as she spoke about the death of her fictional best friend during Monday night’s episode, which Dawn said also served as her own tribute to Emma.
“We hadn’t had an opportunity really to say goodbye to her properly. This was our chance,” she explained.
“I suppose in my tribute to her it was Geraldine talking about Alice, but also Dawn talking about Emma, which is why it took seven takes to do.
“The one that eventually made it to screen was the one with the least crying. I was a blubbing mess, because we miss her so much.”
She continued: “You want to pay tribute but it brings back so many memories.
“That’s the great thing about The Vicar Of Dibley, it can be silly and funny and light and it can also address issues of the day, it can be very current, and it can be warm and and understanding about that, our grief.”
The Vicar Of Dibley In Lockdown airs on Monday at 8.50pm on BBC One, while This Morning airs weekdays at 10am on ITV.