Complex sentence: Shannen Doherty portrays Brenda Walsh, twin sister of Brandon, she was very alone when she first got to Beverly Hills, but soon became friends with Donna and Kelly, Steve, and Andrea.
Split into simpler sentences: Shannen Doherty portrays Brenda Walsh, twin sister of Brandon. She was very alone when she first got to Beverly Hills, but soon became friends with Donna and Kelly, Steve, and Andrea.