Tennant is a fictional character portrayed by Viola Harris in the TV series Law & Order: Special Victims Unit.
In the first episode they appeared in, titled Conned (season 11), they were 89 years old.
They appear in 1 episodes out of a total of 551 aired so far
Episodes1
Conned
episode S11.E19 april 2010An abused, schizophrenic 16-year-old is a suspect in the brutal murder of his close friend. But why is Fin's son protecting the suspect from the police? And did his psychiatrist misdiagnose him for selfish reasons?