Characters:

• Daniel "Oz" Osbourne (Buffy The Vampire Slayer)
• Dirk Gently (Dirk Gently's Holistic Detective Agency)
• Flynn Carsen (The Librarians)
• Gaius Baltar (Battlestar Galactica)
• Geoffrey Tennant (Slings & Arrows)
• Jaye Tyler (Wonderfalls)
• Sally Grissom (ars Paradoxica)
• Sherlock Holmes (Elementary)
• Stevie Budd (Schitt's Creek)

Tropes:

• "deadpan snarker"/"the lancer"
• absent-minded scholar/eccentric intellectual
• robot and AI characters