Isaac Tash
Still waters isaac tash
Actor Steven McCarthy
Seen Still Waters
Shades of Grey
Gender Male
Status Living
Relationships Julia Ogden, close friend
Job Medical Doctor
Dr. Isaac Tash went to Bishop's University with Julia Ogden. In their school days they were good friends and they remained so afterwards, becoming confidants as well.

Appearances and Mentions

Still Waters

  • In his youth, Tash had been on the rowing team at the King's Rowing Club. Years later when Detective William Murdoch is investigating the murder of Richard Hartley at the club, Dr. Ogden arranges a meeting between Murdoch and Dr. Tash so that he could show Murdoch around the grounds. Tash leads Murdoch to Hell's Point, the site of a violent hazing ritual.

 Shades of Grey

  • It is revealed that after Julia Ogden had become pregnant out of wedlock and had to make the difficult choice, she asked Isaac to help her but he refused to break the law. So Julia went elsewhere for an abortion that nearly killed her and it was Isaac who saved her life. Murdoch believes that Dr. Tash was the father of Julia's unwanted child.
  • Quietly and discreetly, Dr. Tash in his practice will help women without judgment or questions because he does not want to see another woman go through what Julia did.


  • It will take nine seasons to finally reveal that Isaac Tash not only saved Julia's life, he mended her body so a doctor renowned for his work in fertility informs Julia that should be able to conceive (ep.1104) and with the assistance of experimental hormone therapy, she does (ep.1111).


Murdoch Mysteries Recurring Actors and Characters
Daniel Maslany as Detective WattsShanice Banton as Violet HartLachlan Murdoch as Henry HigginsArwen Humphreys as Margaret BrackenreidCharles Vandervaart as John BrackenreidClare McConnell as Effie NewsomeBea Santos as Louise CherryPeter Keleghan as Terrence Meyers • Siobhan Murphy as Ruth NewsomeStephanie Belding as Nurse SullivanSebastian Pigott as Dr. DixonColin Mochrie as Ralph FellowsJames McGowan as Dr. ForbesDmitry Chepovetsky as Nikola TeslaPatrick McKenna as Hamish SlorachCyrus Lane as Rupert NewsomeDavid Reale as Mr. ClementsCraig Brown as Eddie CrawfordPeter Stebbings as James PendrickErin Agostino as Nina BloomMouna Traoré as Rebecca JamesJordan Johnson-Hinds as Nate DesmondDylan Neal as Jasper LinneyKristian Bruun as Constable JacksonMatthew Bennett as Allen CleggJohn Tench as Alexander Graham BellMartin Moreau as Theodore RooseveltRichard Clarkin as Chief Constable DavisMichael Seater as James GilliesRothaford Gray as Alderman William Peyton HubbardCyrus Lane as Roger NewsomeGeorgina Reilly as Emily GraceCharlotte Sullivan as Charlotte (formerly Minerva Fairchild)Nigel Bennett as former Chief Constable GilesSean Harraher as Constable WorseleyTamara Hope as Edna Brooks (née Garrison)Giacomo Gianniotti as Leslie GarlandNicole Underhay as Margaret HaileSarah Gadon as Ruby OgdenKate Greenhouse as Sally PendrickStephen McHattie as Harry MurdochGeraint Wyn Davies as Arthur Conan Doyle
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