Kevin Wu is a popular YouTuber under the user name KevJumba. He appears in some of Ryan's videos as well as Ryan make appearances in Kevin's.
List of appearances:
- BEST CREW vs Poreotics (debut)
- BEST CREW- The Audition
- BEST CREW Deleted Scene
- Dear Ryan- Basketball-Tubing Weather Lamp
- Shed a Tear
- Shed a Tear (Behind the Scenes / Bloopers)
- Agents of Secret Stuff
- Romantic Valentines Day Story
- Dear Ryan- Extreme
- Honk for Japan
- Nice Guys
- 3000000 Subscribers!
- How to be a YouTube Celebrity