https://www.metv.com/stories/playing-perry-mason-took-a-toll-on-raymond-burr

Starring in the series had its ups and downs, according to Burr.

Playing Perry Mason all the time was a welcome challenge for Raymond Burr (https://www.metv.com/stories/did-raymond-burr-ever-get-tired-of-playing-perry-mason)

Burr was a talented actor, but did he ever feel overwhelmed by Perry Mason?