The Flash Season 4, Episode 10 The Trial of The Flash Drama IMDB 7.8 Country United States Duration 44 min Air Date 2018-01-16 Actors Grant Gustin (Barry Allen / The Flash) Candice Patton (Iris West-Allen) Danielle Panabaker (Khione) Danielle Nicolet (Cecile Horton) Kayla Compton (Allegra Garcia) Brandon McKnight (Chester P. Runk) Jon Cor (Mark Blaine / Chillblaine) Overview As Barry’s trial for the murder of Clifford DeVoe begins, Iris and Joe must decide how far they are willing to go to keep Barry out of prison.