Wally Singer operates as a member of the Gemini Defense Squad, a specialized military unit combating dinosaur threats. He pilots the Gemini Vehicles alongside teammates Jim Starbuck, Gem Starbuck, and Jerry Fordham under the command of Dr. John Carmody. His duties include piloting combat vehicles during missions against dinosaur attacks, engaging in tactical operations to counter hypnotized animal assaults orchestrated by dinosaurs, and supporting the team during Gemini system activation and deployment. The character appears exclusively in operational contexts within the documented narrative, consistently executing his duties within the team structure during various missions. These missions involve responding to threats like hypnotized dogs, giant bats, and swarms of rats.