Mama-San is a fictional character portrayed by Momo Yashima in the TV series Castle.
In the first episode they appeared in, titled The Way of the Ninja (season 6), they were 65 years old.
They appear in 1 episodes out of a total of 173 aired
Episodes1
The Way of the Ninja
episode S6.E18 march 2014Investigating the killing of a Japanese ballerina, Castle and Beckett find a shrine with the murder weapon in an old factory. Then, when the two are separated, Castle is ambushed by a hooded attacker bearing all the hallmarks of a ninja.