Son of Mine

Son/Brother of Mine was the leader of the Family of Blood.

Biography
Having assumed the body of Jeremy Baines from Farringham School for Boys, he led his family in a chase to catch the Tenth Doctor in order to gain his immortality, for otherwise, they would die in three months time.

After the Family's defeat, the Doctor suspended Son of Mine in time and had him watch over the fields of England as a scarecrow.

Noticeably, he possessed a manner of talking that made many of his consecutive sentences run into each other, and was probably the most intelligent of his Family. (DW: Human Nature / The Family of Blood)