Smythe is an archaeologist and a member of the Explorer's Club.
At the Explorer's Club, he and Underhill were listening to a presentation by Shippelton on a recent exploration he had. While Shippelton was talking about the Boobytraps of Inescapability, the explorer showed his back, which revealed to be arrows attached to it. Smythe recommended that Shippelton should go to a doctor, but he doesn't follow his advice.
Later, he was in a meeting along with Shippelton and Underhill before being interrupted by Lloyd, Nya, and Zane. Once Smythe realized the ninja were stealing an artifact, he called security, which caused the ninja to flee to one of the rooms.
Once the ninja escaped the Explorer's Club, the building is left in disarray. When Smythe was talking to Shippelton on who to blame, they were under attack by Vastodectrus Venemous and began to run.
Smythe attended Nya's memorial.
- 111. "The Explorers Club"
- 174. "Riddle of the Sphinx"
- 177. "The Calm Before the Storm" (no lines)
- 180. "The Turn of the Tide" (no lines)
- 75. Ocean Race!
- His appearance is similar to Fungus' appearance and the same as the one of the Ninjago City security guards.
- His hairpiece was previously used on Vlad Tutu and later on Plundar, and was also originally used on a Series 16 minifigure, the Dog Show Winner.