Lonnie Anderson (played by Josh C. Williams, Luke Edwards and later Kristopher Kent Hill) is the oldest son of Crystal Anderson-Conner. His father Sonny, died in an freak accident when he was cemented over. He is a half-brother to Ed Conner Jr. and Angela.
Lonnie is the son of Crystal and Sonny. He is about the same age as Darlene. He is close to his mother, even writing a poem about her in season 2, but he also sometimes gets annoyed at her. He gets very upset when his mother marries Ed, but seasons later Dan suggested that Ed is ruining their lives and Lonnie responds by saying that he's not.