Ralph Walker is a fictional character portrayed by Mike Pniewski in the TV series Law & Order: Special Victims Unit.
In the first episode they appeared in, titled Selfish (season 10), they were 48 years old.
They appear in 1 episodes out of a total of 551 aired so far
Episodes1
Selfish
episode S10.E19 april 2009An immature, irresponsible young mother is assumed to have killed her child, but it turns out to be part of a measles outbreak. A.D.A. Cabot then goes after the mother of the child who started the outbreak, who refused to immunize him.