Broadcaster Hywel Gwynfryn, in his 2014 biography of the two comedians, describes the contrast between their appearance and character, enhanced by the fact that Williams was a baritone who could hold his own in duets with Davies's tenor.
Hywel Gwynfryn, a broadcaster, wrote about the two comedians in his 2014 biography, pointing out the difference between their physical appearance and character. Furthermore, it was observed that Williams's baritone voice could blend well with Davies's tenor voice when they sang together.