Original: He is best known for his roles in two BAFTA award-winning BBC Wales dramas : as Sam Tyler in the detective drama Life on Mars and as an incarnation of the Master in the long-running science fiction series Doctor Who .
Simplified: He is known for his roles in two BAFTA award-winning BBC Wales dramas : as Sam Tyler in the drama Life on Mars and as the Master in the long-running science fiction series Doctor Who .