David Tennant, 39, probably most noted for his stint as the good doctor on the British television series, Doctor Who (from 2005 to 2010), and actress Georgia Moffett, 26, are engaged.
The couple met on the set of the high rated television show in 2008, when Moffett made a guest appearance on the series, playing the role of Tennant's daughter.
Moffett, who has an 8 year old son, is the daughter of Peter Davison, who played the lead role in the series from 1982 to 1984.
The couple plan to wed on New Year's Day, 2012.