The War Master: The Master of Callous • Episode 4 Sins of the Father Sets: The War Master 4.20/ 5 51 votes TARDIS Wiki Share this page {{ shareFeedback }} Copy link {{ copyFeedback }} Overview Reviews (1) Released Wednesday, December 5, 2018 Written by Guy Adams Runtime 51 minutes Locations Callous Login to track and rate! View Rating Distribution Ratings are from TARDIS Guide members only. Characters Narvin Teremon The Master The War Master The Ood Where to listen to Sins of the Father: The War Master: The Master of Callous Average. Rating: 73%