Shaun Temple

Sean Temple was in a relationship with Donna Noble in the year 2010. The Doctor saw him and Donna shopping on Christmas Eve he made sure not to be seen in case Donna remembered everything about him. The next day he came round to the Noble house hold and celebrated Christmas with them. Later that day the Master walked into the Immortality Gate, he took over Sean and made him into another Master. (DW: The End of Time)