In January 2004, he took over Casey Kasem's place as host of "American Top 40." In December 2004, Ryan began hosting a second version of "American Top 40" (Hot AC version).
Had a very brief appearance as an extra in Crimson Tide (1995). He's shown as the submarine is getting underway, staring at an aquarium. He pointed this out himself when he hosted a showing of the film. He is not credited.