Billie Piper who played Rose on the first two seasons of Dr. Who has returned to the set for three episodes in the fourth season. Based on the report, The Dr. will have three companions Rose, Martha [Freema Agyeman], and Donna [Catherine Tate] who played “The Runaway Bride” in last years Christmas special.

Three companions, all of them female. This should be an emotional, action packed season. lol