"Gilmore Girls" alum Keiko Agena and "The Man In The High Castle" actor Cary-Hiroyuki Tagawa will make a cameo appearance in the upcoming episode of "Grimm" Season 5. Agena will play the role of a Japanese-American mother whose son will die a mysterious death and Tagawa will serve as her trial lawyer. Also, NBC has released the official plot description of episode 11 'Key Move'.

"Gilmore Girls" actress Keiko Agena officially signs in as a guest star in "Grimm" Season 5 and according to TV Line, the 42-year-old Hawaiian-born American actress will portray the role of Madoka Akagi who happens to be a second-generation Japanese-American woman whose teenage son Kuma died in a tragic event. Since she and her husband are convinced that Kuma's death was not an accident, Madoka goes on a mission to find the villains who are responsible behind the tragedy. Agena's character will debut in episode 17

In addition, "The Man In The High Castle" actor Cary-Hiroyuki Tagawa will also guest star in the 17th episode of the NBC series. The 65-year-old Japanese-American actor and stuntman will play as one of Akagi's family friends, Takeshi Himura. Himura will also serve as Madoka's trial lawyer as she tries to solve the mysterious case of her son, Christian Post has cited .

As for the official plot synopsis of episode 11, Hollywood Hills notes, "A trip overseas will take Nick Burkhardt (David Giuntoli) and Monroe (Silas Weir Mitchell) on a dangerous journey. Newly gained artifacts are going to take Nick and Monroe closer to the source of a long-gestating mystery. Black Claw is going to make a deadly move that will send Portland into disarray.

"Grimm" Season 5 Episode 11 is entitled as "Key Move". The forthcoming episode is scheduled to premiere on Friday, March 4, 2016 at 8:00 p.m. exclusively on NBC.

"Grimm" is an American police procedural fantasy TV drama series created by Stephen Carpenter, David Greenwalt, and Jim Kouf.