Trivia: The role of Alan Matthews was originally played by Matt McCoy when the pilot was first shot. He was replaced by William Russ in the reshoot.
Trivia: Will Friedle originally lost the role of Eric to another actor. The actor - whom Friedle has identified as being named either Harry Branichee or Harry Branshee - was similar in height to Ben Savage at the time. The creators of the show realised this would be problematic when Ben Savage started to grow taller, eventually being taller than his onscreen older brother, so they went with Friedle.
Trivia: Other actors considered for the role of Eric were Rider Strong's brother Shiloh, and Jason Marsden. Marsden would later appear in the series as Eric's high school friend, also named Jason Marsden.
Trivia: Ben Savage and Rider Strong are the only actors to appear in all 158 episodes of the show.
Answer: Topanga's middle name is never specified. Considering her sister's name is Nebula Stop-the-war Lawrence, Topanga's is probably something equally unusual.