Maent yn cynnwys: Steven Moffat, Cynhyrchydd Gweithredol a chyd-grëwr Sherlock a Rheolwr Creadigol, Ysgrifennydd a Chynhyrchydd Gweithredol Doctor Who; Mark Gatiss, cyd-grëwr Sherlock, sydd hefyd wedi ysgrifennu ac ctors yn Sherlock a Doctor Who; Cynhyrchydd y Gyfres, Sue Vertue, a’r ctors Amanda Abbington sy’n chwarae rhan Mary Watson.
They include: Steven Moffat, Executive Producer and Co-Creator of Sherlock and Showrunner, Writer and Executive Producer of Doctor Who; Mark Gatiss, co-creator of Sherlock and who has also written and acted in Sherlock and Doctor Who; Series Producer Sue Vertue and actress Amanda Abbington who plays Mary Watson.