The new arrival was written into the ITV detective series when Dolman discovered she was pregnant. Her baby, Madeleine Charlotte, was born in July.
"I didn't think I'd ever have a child so I feel very blessed," said the single mum. "I am very happy to bring up the baby on my own as I have incredible support and love from my family.
"Things might not be perfect but from the moment I held Madeleine in my arms we felt like a team. I've got so much love around me, so I know we're going to be all right.
"Everyone on Midsomer Murders has been so supportive and lovely. I went back in October to film the fifth episode and Neil was very excited for me.