The Paternoster Gang are recurring characters in Doctor Who. They are a trio of detectives who resident in Victorian England and have aided The Eleventh Doctor many times. The members consist of a female Silurian named Madame Vastra, her human maid and wife Jenny Filnt and a Sontaran named Strax. They appeared in the Eleventh Doctor episodes A Good Man Goes To War, The Snowmen, The Crimson Horror and The Name of The Doctor and most recently Deep Breath with The Twelfth Doctor.
Madame Vastra is a Silurian who was awoken from hibernation in the 19th century by workers in the London Underground where she killed five commuters but was pacified by the Doctor and eventually she overcame her hatred of humans and became part of the community and became a detective and was responsible for killing and eating Jack the Ripper.
She is played by Neve McIntosh.
Jenny Flint was originally Vastra's maid and assistant but later became her wife, though she still acts like her maid in public, which she is not best pleased with.
She is played by Catrin Stewart.
Strax is a Sontaran who was demoted to being a nurse after the Sonaran's defeat on Earth. He died in during the Battle of Demons Run but was later revived and became Vastra and Jenny's butler.