Side Characters

Stacie leads this discussion about side characters. What makes them memorable? How are they different from secondary characters? Which ones do we love? Artwork mentioned:  "The Pitt" HBO Max "Big Little Lies" "Nine Perfect Strangers" by Liane Moriarty "Six of Crows" by Leigh Bardugo The Murderbot Diaries by Martha Wells ("All Systems Red" is #1) "A Song of Fire and Ice" by George R.R. Martin The Expanse Series by James S.A. Corey ("Leviathan Wakes" is #1) The Harry Bosch Series by Michael Connelly ("The Black Echo" is #1) Jack Reacher books by Lee Child ("Killing Floor" is #1) The Gentleman Bastard Series by Scott Lynch "The Lies of Locke Lamora" #1 "Red Seas Under Red Skies" #2 "The Republic of Thieves" #3 "Lincoln in the Bardo" by George Saunders Heated Rivalry books by Rachel Reid ("The Long Game" is #6)