Dominus Suus writes: Better late than never: on 7 December, Mark Ritts, who played the long-suffering, disgruntled actor-in-a-rat-suit Lester on Beakman's World succumbed to kidney cancer after battling the disease for two years. He was 63. Anyone born in the 1980s probably got their introduction to high school and university-level science from Beakman's World during its run from 1993 to 1998. Ritts' Lester was the comedic foil to Beakman's demonstrations and explanations, unwittingly becoming ridiculed himself as the scientist's experiments came to fruition. Those wishing to leave their condolences and thanks to this gifted performer's family may do so at Ritts' official website, www.markritts.com.