Sonny is a modified NS-5 robot. He was created by Alfred Lanning and becomes an ally of Susan Calvin and Del Spooner after the death of his creator.
- Sonny is voiced by Alan Tudyk who also voiced King Candy from Whreck-It-Ralph, The Duke of Weselton from Frozen and Alistair Krei from Big Hero 6.
- Sonny will be Cream Puff's Guardian.
- Sonny will meet Tino Tonitini, Ash Ketchum, Littlefoot, Brian Griffin, Thomas the Tank Engine, Twilight Sparkle, Roary, and Theodore in Weekenders in I, Robot.