Complex sentence: Alan Alda would later play Dr. Gabriel Lawrence in a five-episode story arc of the television series "ER"; a surgeon who had early stage Alzheimer's Disease, and the same personality and surgical skills as Hawkeye Pierce.
Split into simpler sentences: Alan Alda would later play Dr. Gabriel Lawrence in a five-episode story arc of the television series "ER". Dr Lawrence was a surgeon who had early stage Alzheimer's disease, and the same personality and surgical skills as Hawkeye Pierce.