Geoffrey Hughes is a "fighter", said his Royle Family co-star Caroline Aherne.
The comic actress gave a get well message to the TV legend, who played Twiggy in the Bafta-winning series, and who is battling prostate cancer.
She told the Daily Mirror: "Geoffrey is a fighter - he has beaten this cancer before and I know he will beat it again.
"I am thinking about Geoffrey at this very difficult time. He is a warm and talented man and we are all looking forward to working with him again on the Royle Family Christmas Special."
Actress Judy Cornwell, who played his on-screen wife Daisy in Keeping Up Appearances, also passed on a message of support.
"I was sorry to hear the cancer has returned. I hope he can be as brave fighting it this time as he was when it was first diagnosed," she said.