Jack is a fictional character portrayed by Scott Anthony Leet in the TV series Castle.
In the first episode they appeared in, titled The Time of Our Lives (season 7), they were 51 years old.
They appear in 1 episodes out of a total of 173 aired
Jack is also portrayed by Kai Scott.
Episodes1
The Time of Our Lives
episode S7.E6 november 2014When Castle gets knocked out while tracking some criminals with Beckett, he wakes up to a world in which he and Kate have never met.