Kinshiro Morooka is the homeroom teacher of the protagonist. 

Persona 4 takes place in a rural town named Inaba. There have been mysterious murders occurring whenever there was fog after heavy rain. There were also rumors about a channel on television airing only at midnight called Mayonaka TV, during which it is said that one can see his/her "other half" when staring at the TV screen. 
After hearing about a recent unsolved murder which occurred during the fog, the characters—Narukami, Chie, and Yosuke—discuss how each of them had attempted to watch the mysterious TV channel and witnessed the murder victim. The protagonist later realizes that during midnight when the channel is on, his body can phase into his television set as a gateway to enter another world infested with shadows. 
After discovering this, they all decide to explore. When first completely entering the world, dazed and confused, Narukami meets Teddie. Mayonaka TV and the town murders seem to have a connection. The murder victims may be merely victims of Mayonaka TV. Everyone decides that they will together try to solve the mysterious murders by exploring the hidden world of Mayonaka TV.

He is known for playing tough or grouchy men in dubbed anime and video games. His career includes Hotohori in Fushigi Yūgi and Jin in Samurai Champloo. He also played numerous cameos and minor characters in Rurouni Kenshin, in addition to the major character of Hajime Saito. He also does Don Patch in Bobobo-bo Bo-bobo as well as Gabumon and other voices in Digimon.  According to Anime News Network, Thornton has the most credits of any male voice actor and he is second in total voice actor credits only next to Wendee Lee. He has been in nearly two hundred voice-over productions for Japanese animation.  Thornton is also well-known for having played many different minor voice roles throughout the Power Rangers franchise (and similar series such as VR Troopers and Masked Rider).  Thornton has also had experience with ADR direction. Currently, he is co-directing the ADR for the popular anime series Bleach alongside Wendee Lee.

Following a string of mysterious murders, transfer student Souji Seta and his new friends have followed the legend of the Midnight Channel and found themselves pulled into another dimension! In this twisted TV world, a person’s innermost secrets materialize as a Shadow — an entity that may become a powerful ally, or something much worse...
 
Based on the popular Persona 4 video game!
 Source: UDON Entertainment