Georgia Moffett
From Tardis Wiki, the free Doctor Who reference
Georgia Moffett (born 25th December 1984) appeared as Jenny-made with the Doctors own DNA, the title character of the Doctor Who story The Doctor's Daughter. She is the daughter of Peter Davison, who played the Fifth Doctor. Previously, she had auditioned for the role of Rose Tyler, which was ultimately given to Billie Piper.
Georgia also appeared as The Bill as Sam Nixon's troubled teen daughter Jennywho was featured in a number of major storylines.
Other information
She was born just nine months after Colin Baker took on role of the Sixth Doctor, replacing her father as the Doctor.