David "Chico" Ryan (born David-Allen Ryan;[1] April 9, 1948 – July 26, 1998), also called Chico Bo-Wico, was an American bass guitarist and singer.
[1] While in college, he performed with The Rockin' Ramrods, a Boston-area group that once released an album under the name Puff and once toured with the Rolling Stones.
On the television show, Ryan often roller-skated and yo-yoed while singing.
Ryan went on to become a member of Bill Haley & His Comets in 1979, taking part in Haley's final tour of Europe that fall (including a command performance for Queen Elizabeth II in November).
He died on July 26, 1998, in Boston, Massachusetts, of heart failure.