Simplify the following text for a Grade 6 native English-speaking person.
Original: He is also known for his role in Withnail and I , and for portraying the Eighth Doctor in the 1996 Doctor Who television movie and subsequent tie-in media .
Simplified: He is best known for his roles in Withnail and I ( 1987 ) and as the Eighth Doctor in the 1996 Doctor Who television movie .