9-1-1: Lone Star Season 4, Episode 15 Donors Drama Crime IMDB 8.053 Country United States Duration 43 min Air Date 2023-05-02 Actors Rob Lowe (Owen Strand) Gina Torres (Tommy Vega) Ronen Rubinstein (T.K. Strand) Sierra McClain (Grace Ryder) Jim Parrack (Judd Ryder) Natacha Karam (Marjan Marwani) Brian Michael Smith (Paul Strickland) Rafael Silva (Carlos Reyes) Julian Works (Mateo Chavez) Brianna Baker (Nancy Gillian) Overview Grace and Carlos work together when they suspect a young woman was a victim of a black market organ trafficking ring; Owen's brother Robert comes to visit and meet T.K., but surprises Owen with news that can affect the Strand family.