Complex sentence: In early 1991, she lured Anthony Geary back to daytime, not as the popular Luke Spencer, but instead went along with his demand to play a brand new character, Bill Eckert, Luke's look-a-like cousin.
Split into simpler sentences: In early 1991, she lured Anthony Geary back to daytime, but not as the popular Luke Spencer. Instead, Monty went along with Geary's demand to play a brand new character, Bill Eckert, Luke's look-a-like cousin.