Ryo is considered the greatest Digimon Tamer, but he disappeared a year ago and had been in the Digital World ever since. He helped Rika, Kazu, and Kenta when a Megadramon was attacking them. He came and went as he was needed. It turned out Ryou was the only person who ever defeated Rika in a Card Tournament, previous to the one where she won. He has a positive attitude, and due to the fact he stayed in the Digital World, his entire body is practically data. As a result, he could Biomerge with Cybedramon, so his partner can Digivolve to Justimon. Ryo's a nice boy, but Rika hates him because he helped her (go figure). His dad was mad at him because he was missing for three years. At the end of the season, Rika and Ryo actullay seem to like each other. He called her "Pumpkin" and "Wildcat Rika", and she called him "Twerp" and "Hero-Boy". Plus, there is evidence of this when she trusts him enough to let him have her power for his blade (inside D-reaper), then he grabs her (since she has no power left). He holds her until the battle is basiclly over. When their Digimon leave, you can see in that Rika and Ryo are standing next to each other. When the digimon are gone you can see them staring at each other.
- Ryo Akiyama appears in the final battle at Pride Rock in Sonic The Hedgehog Meets The Lion King Full Story.
- He will become a guest star in Tino's Adventures of Scooby-Doo! The Mystery Begins and other Weekenders/Scooby-Doo crossovers.
- He will appear in Team Robot in Pokemon XY Special: Mega Evolution Act 2 in Team Robot In Pokemon XY The Series. He goes on a journey with Alain along with his friends the D-Team, Alpha Gang, their Dinosaurs, Kim Possible, Ron Stoppable and Rufus in the Hoenn region. He also help out his friends to stop the fight between Primal Groudon and Primal Kyogre, until Mega Rayquaza shows up and stop the fight while Team Flare manage to grab the giant rock and escapes. Later he and Cyberdramon decided to go to the Kalos region to join Emerl and his friends.