<Ul> <Li> Damon Wayans as Roger Murtaugh , a senior Los Angeles Police Department Detective who returns to the force after recovering from a heart attack and is partnered with Texas transfer Martin Riggs . He is married with three children ( two teenagers and a toddler ) . He is a native of Inglewood , California , and currently resides in Sherman Oaks . He carries a Heckler & Koch USP as his duty weapon , in early episodes , and later switches to a Glock . In `` Family Ties '' , Murtaugh is promoted to Captain after Avery decides to step down in order to run for office . He was originally played by Danny Glover in the film series . </Li> <Li> Clayne Crawford as Martin Riggs ( seasons 1 -- 2 ) , a Navy SEAL - turned - police officer from El Paso , Texas . He moved to Los Angeles after the death of his wife and unborn child , transferring from the El Paso County Sheriff 's Office to the LAPD 's Robbery - Homicide Division . Riggs lived in a trailer on the beach , drives a 1977 Ford F - 350 , and his weapon of choice is the Beretta 92F , very similar to his movie counterpart . He was shot in the season 2 finale and died in the season 3 premiere . He was originally played by Mel Gibson in the film series . </Li> <Li> Jordana Brewster as Dr. Maureen Cahill ( seasons 1 -- 2 ; guest , season 3 ) , the police department 's psychologist who treats Det . Riggs ( and occasionally Det . Murtaugh ) . Although sometimes she is referred to as a psychiatrist and prescribes drugs ( for example in `` Better Living Through Chemistry '' ) . The character is based on Dr. Stephanie Woods played by Mary Ellen Trainor in the film series . </Li> <Li> Keesha Sharp as Trish Murtaugh , Det . Murtaugh 's loving wife and mother of his three children who works as a defense attorney . In the season one episode `` As Good As It Getz '' , Trish quits her job after being passed over for managing partner at her law firm . She was originally played by Darlene Love in the film series . </Li> <Li> Kevin Rahm as Captain Brooks Avery , the Commanding Officer of Robbery - Homicide Division . Before his promotion , Capt . Avery was partners with Det . Murtaugh . In `` Lawmen '' , it is revealed that years ago he and a Los Angeles County Sheriff 's Department deputy ( Malcolm - Jamal Warner ) planted evidence to convict a murderer after previous evidence was excluded from trial ; he was prepared to resign over the incident when it came to light , but Murtaugh convinced him to stay because if his impropriety was revealed it would mean that all of Avery 's cases ( many of which he worked with Murtaugh ) would be reviewed if not overturned entirely . The character is based on Captain Ed Murphy played by Steve Kahan in the film series . </Li> <Li> Johnathan Fernandez as Bernard Scorsese , a medical examiner , forensic scientist and aspiring screenwriter who works alongside Dets . Murtaugh and Riggs . </Li> <Li> Michelle Mitchenor as Detective Sonya Bailey , a fellow detective with Robbery - Homicide Division . She is partnered with Det . Alex Cruz during the first season and Det . Zach Bowman during the second season . </Li> <Li> Chandler Kinney as Riana Murtaugh , Det . Murtaugh 's teenage daughter . The character is based on Rianne Murtaugh , played by Traci Wolfe in the film series . </Li> <Li> Dante Brown as Roger `` RJ '' Murtaugh Jr. , Det . Murtaugh 's teenage son . He graduated from high school at the end of season 1 and briefly attended college before dropping out during season 2 . The character is based on Nick Murtaugh , played by Damon Hines in the film series . </Li> <Li> Seann William Scott as Wesley Cole ( season 3 ) , a war veteran and father who moves to Los Angeles to be closer to his child . The character shares the same surname as Lorna Cole , Riggs ' love interest played by Rene Russo in the film series . </Li> </Ul>
<Ul> <Li> Damon Wayans as Roger Murtaugh , a senior Los Angeles Police Department Detective who returns to the force after recovering from a heart attack and is partnered with Texas transfer Martin Riggs . He is married with three children ( two teenagers and a toddler ) . He is a native of Inglewood , California , and currently resides in Sherman Oaks . He carries a Heckler & Koch USP as his duty weapon , in early episodes , and later switches to a Glock . In `` Family Ties '' , Murtaugh is promoted to Captain after Avery decides to step down in order to run for office . He was originally played by Danny Glover in the film series . </Li> <Li> Clayne Crawford as Martin Riggs ( seasons 1 -- 2 ) , a Navy SEAL - turned - police officer from El Paso , Texas . He moved to Los Angeles after the death of his wife and unborn child , transferring from the El Paso County Sheriff 's Office to the LAPD 's Robbery - Homicide Division . Riggs lived in a trailer on the beach , drives a 1977 Ford F - 350 , and his weapon of choice is the Beretta 92F , very similar to his movie counterpart . He was shot in the season 2 finale and died in the season 3 premiere . He was originally played by Mel Gibson in the film series . </Li> <Li> Jordana Brewster as Dr. Maureen Cahill ( seasons 1 -- 2 ; guest , season 3 ) , the police department 's psychologist who treats Det . Riggs ( and occasionally Det . Murtaugh ) . Although sometimes she is referred to as a psychiatrist and prescribes drugs ( for example in `` Better Living Through Chemistry '' ) . The character is based on Dr. Stephanie Woods played by Mary Ellen Trainor in the film series . </Li> <Li> Keesha Sharp as Trish Murtaugh , Det . Murtaugh 's loving wife and mother of his three children who works as a defense attorney . In the season one episode `` As Good As It Getz '' , Trish quits her job after being passed over for managing partner at her law firm . She was originally played by Darlene Love in the film series . </Li> <Li> Kevin Rahm as Captain Brooks Avery , the Commanding Officer of Robbery - Homicide Division . Before his promotion , Capt . Avery was partners with Det . Murtaugh . In `` Lawmen '' , it is revealed that years ago he and a Los Angeles County Sheriff 's Department deputy ( Malcolm - Jamal Warner ) planted evidence to convict a murderer after previous evidence was excluded from trial ; he was prepared to resign over the incident when it came to light , but Murtaugh convinced him to stay because if his impropriety was revealed it would mean that all of Avery 's cases ( many of which he worked with Murtaugh ) would be reviewed if not overturned entirely . The character is based on Captain Ed Murphy played by Steve Kahan in the film series . </Li> <Li> Johnathan Fernandez as Bernard Scorsese , a medical examiner , forensic scientist and aspiring screenwriter who works alongside Dets . Murtaugh and Riggs . </Li> <Li> Michelle Mitchenor as Detective Sonya Bailey , a fellow detective with Robbery - Homicide Division . She is partnered with Det . Alex Cruz during the first season and Det . Zach Bowman during the second season . </Li> <Li> Chandler Kinney as Riana Murtaugh , Det . Murtaugh 's teenage daughter . The character is based on Rianne Murtaugh , played by Traci Wolfe in the film series . </Li> <Li> Dante Brown as Roger `` RJ '' Murtaugh Jr. , Det . Murtaugh 's teenage son . He graduated from high school at the end of season 1 and briefly attended college before dropping out during season 2 . The character is based on Nick Murtaugh , played by Damon Hines in the film series . </Li> <Li> Seann William Scott as Wesley Cole ( season 3 ) , a war veteran and father who moves to Los Angeles to be closer to his child . The character shares the same surname as Lorna Cole , Riggs ' love interest played by Rene Russo in the film series . </Li> </Ul>
who plays damon wayans wife on lethal weapon
who plays damon wayans wife on lethal weapon
Keesha Sharp
Keesha Sharp