Johanna is a fictional character portrayed by Helena Mattsson in the TV series NCIS: Los Angeles.
In the first episode they appeared in, titled Full Throttle (season 1), they were 25 years old.
They appear in 1 episodes out of a total of 323 aired
Episodes1
Full Throttle
episode S1.E17 march 2010During a drag race a Navy yeoman dies in a crash; Callen and company investigate; the victim worked on something highly classified. Sam suggests the possibility of homicide. The team work on the puzzle; Kensi finds the last piece.