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, highlighting the contrast between their physical appearance and personalities. Additionally, it was noted that Williams's deep baritone voice could harmonize with Davies's higher tenor vocals during duets.