Colin Baker, who played a former incarnation of The Doctor, wrote on Twitter:
Oh my goodness. Kate O'Mara is no longer with us. Sad sad news. A delightful, committed and talented lady and actress. We are the poorer
More top news
An Atlantic frontal system brings rain across northwest Scotland and Northern Ireland overnight.
A memorial to honour the service of millions of men and women from Africa and the Caribbean during the two world wars has been unveiled.
South Africa's president often seems able to survive anything, writes John Ray - but a vote of no confidence held in secret may change that.