The 41-year-old played Nina Far in the BBC One Drama, appearing between 2004-2006.
This afternoon Rebekah sadly lost her battle with cancer, with her agent confirming the sad news.
Belfield and Ward tweeted: “Darling Rebekah Gibbs, a true inspiration and dazzling light, never to be forgotten.”
Rebekah first discovered she had cancer in 2008 weeks before she gave birth to her daughter.
She had treatment, but was told her cancer was particularly aggressive.
Speaking of the moment she discovered the lump by her breast, Rebekah told the Mirror it would be “one that will be etched on my memory forever.
“I close my eyes, and I am right back there, in front of the TV, feeling petrified as I desperately run my finger above my baby bump and under my breast, willing the lump to disappear.
“That crushing fear has stayed with me. It’s with me every day.”
Her husband Ashley Pitman said of her tragic death: “Rebekah has wonderful care and felt loved and safe right up until the end, especially with the outstanding nursing staff at the Hospice in the Weald, who were exceptional.
“I’d also like to thank everyone for their kind wishes and messages at this difficult time. My daughter and I take a great deal of comfort from this as we come to terms with life without our Rebekah.”