There were two Det. Cassidys in Law and Order series:
The role of Det. Dani Beck was played by Connie Nielsen in six episodes of Law and Order SVU, Season 8 (2006).
Actor Jerry Orbach played Det. Lenny Briscoe in 274 episode of the original Law and Order series; 3 episodes of Law and Order SVU; 1 episodes of Law and Order Criminal Intent; 3 episodes of Homicide: Life on the Street; 2 eipsodes of Law and Order: Trial by Jury; and 3 Law and Order video games.
Christopher Meloni's costar on Law and Order SVU is Mariska Hargitay, who plays Det. Olivia Benson.
Yes, Dean Winters played Detective Brian Cassidy in 13 episodes of 'Law and Order: SVU'. Other series related to the 'Law and Order' series that he played are:the character 'Mike Stoat' in 1 episode of 'Law and Order: CI'the character 'Ryan O'Reily' in 56 episodes of 'Oz'.the character 'Tom Marans' in 3 episodes of 'Homicide: Life on the Street'.More than ten years after his final appearance on SVU, he again portrayed Detective Brian Cassidy in the 13th season finale "Rhodium Nights", became a recurring character in the 14th season and, in the 15th season, also became Sergeant Olivia Benson's love interest. In 2015, he left to star in the short-lived series "Battle Creek" on CBS.
* Christopher Meloni played Chris Keller on "OZ" and Elliot Stabler on "Law & Order: SVU". * Lauren Velez played Dr. Gloria Nathan on "OZ" and Stephanie Jameau on "Law & Order: SVU". * David Zayas played Enrique Morales on "OZ" and John Mireles on "Law & Order." * Dean Winters played Ryan O'Reilly on "OZ" and Detective Brian Cassidy on "Law & Order: SVU". * Lee Tergesen played Tobias Beecher on "OZ" and Keith Ramsey on "Law & Order." * B.D. Wong played Father Ray Mukada on "OZ" and Dr. George Huang on "Law & Order: SVU". * J.K. Simmons played Vern Schillinger on "OZ" and Dr. Emil Skoda on "Law & Order" and "Law & Order SVU". * Edie Falco played Diane Whittlesey on "OZ" and Sally Bell on "Law & Order." * R.E. Rodgers played James Robson on "OZ" and Darryl Kern on "Law & Order: SVU". * Anthony Chisholm played Burr Redding on "OZ" and Leroy Russell on "Law & Order: SVU". * Kathryn Ebre played Shirley Bellinger on "OZ" and Detective Alexandra Eames on "Law & Order: Criminal Intent". * Luis Guzmán played Raoul 'El Cid' Hernandez on "OZ" and Cesar Pescador on "Law & Order". * Robert Clohessy played Officer Sean Murphy on "OZ" and Kenny Peluso, Robert Telford and "Painter" on "Law & Order", Lt. Roger Lemoyne and Phil LeGrand on "Law & Order: Criminal Intent" and Joel Parven and Vinnie on "Law & Order: SVU". * Rita Moreno played Sister Peter Marie Reimondo on "OZ" and Mildred Quintana on the special two-hour crossover episode of "Law & Order: SVU" and "Law & Order: Trial By Jury".
The role of Det. Dani Beck was played by Connie Nielsen in six episodes of Law and Order SVU, Season 8 (2006).
Actor Jerry Orbach played Det. Lenny Briscoe in 274 episode of the original Law and Order series; 3 episodes of Law and Order SVU; 1 episodes of Law and Order Criminal Intent; 3 episodes of Homicide: Life on the Street; 2 eipsodes of Law and Order: Trial by Jury; and 3 Law and Order video games.
Christopher Meloni's costar on Law and Order SVU is Mariska Hargitay, who plays Det. Olivia Benson.
Yes, Dean Winters played Detective Brian Cassidy in 13 episodes of 'Law and Order: SVU'. Other series related to the 'Law and Order' series that he played are:the character 'Mike Stoat' in 1 episode of 'Law and Order: CI'the character 'Ryan O'Reily' in 56 episodes of 'Oz'.the character 'Tom Marans' in 3 episodes of 'Homicide: Life on the Street'.More than ten years after his final appearance on SVU, he again portrayed Detective Brian Cassidy in the 13th season finale "Rhodium Nights", became a recurring character in the 14th season and, in the 15th season, also became Sergeant Olivia Benson's love interest. In 2015, he left to star in the short-lived series "Battle Creek" on CBS.
* Christopher Meloni played Chris Keller on "OZ" and Elliot Stabler on "Law & Order: SVU". * Lauren Velez played Dr. Gloria Nathan on "OZ" and Stephanie Jameau on "Law & Order: SVU". * David Zayas played Enrique Morales on "OZ" and John Mireles on "Law & Order." * Dean Winters played Ryan O'Reilly on "OZ" and Detective Brian Cassidy on "Law & Order: SVU". * Lee Tergesen played Tobias Beecher on "OZ" and Keith Ramsey on "Law & Order." * B.D. Wong played Father Ray Mukada on "OZ" and Dr. George Huang on "Law & Order: SVU". * J.K. Simmons played Vern Schillinger on "OZ" and Dr. Emil Skoda on "Law & Order" and "Law & Order SVU". * Edie Falco played Diane Whittlesey on "OZ" and Sally Bell on "Law & Order." * R.E. Rodgers played James Robson on "OZ" and Darryl Kern on "Law & Order: SVU". * Anthony Chisholm played Burr Redding on "OZ" and Leroy Russell on "Law & Order: SVU". * Kathryn Ebre played Shirley Bellinger on "OZ" and Detective Alexandra Eames on "Law & Order: Criminal Intent". * Luis Guzmán played Raoul 'El Cid' Hernandez on "OZ" and Cesar Pescador on "Law & Order". * Robert Clohessy played Officer Sean Murphy on "OZ" and Kenny Peluso, Robert Telford and "Painter" on "Law & Order", Lt. Roger Lemoyne and Phil LeGrand on "Law & Order: Criminal Intent" and Joel Parven and Vinnie on "Law & Order: SVU". * Rita Moreno played Sister Peter Marie Reimondo on "OZ" and Mildred Quintana on the special two-hour crossover episode of "Law & Order: SVU" and "Law & Order: Trial By Jury".
William Boyd has: Played Extra in "Old Wives for New" in 1918. Played Carpenter in "The City of Masks" in 1920. Performed in "Something to Think About" in 1920. Played Hughie Ray in "A City Sparrow" in 1920. Played Holsappel in "The Six Best Cellars" in 1920. Played Robert Pitts in "Exit the Vamp" in 1921. Played Robert V. Courtney in "Moonlight and Honeysuckle" in 1921. Played Billiards Player in "Forbidden Fruit" in 1921. Performed in "Paying the Piper" in 1921. Performed in "After the Show" in 1921. Played Dan Stuart in "The Jucklins" in 1921. Played Gerard Fynes in "A Wise Fool" in 1921. Played Guest in "The Affairs of Anatol" in 1921. Played Stephen Van Kovert in "The Young Rajah" in 1922. Played Dick Barton in "Bobbed Hair" in 1922. Played Oliver Comstock in "Nice People" in 1922. Performed in "Manslaughter" in 1922. Performed in "Saturday Night" in 1922. Played Dick Deveraux in "On the High Seas" in 1922. Played himself in "A Trip to Paramountown" in 1922. Played Stanley Dale in "The Temple of Venus" in 1923. Performed in "Enemies of Children" in 1923. Played himself in "Hollywood" in 1923. Played Conrad Bardshaw in "Changing Husbands" in 1924. Played Bill in "Tarnish" in 1924. Played Young Society Man in "Feet of Clay" in 1924. Performed in "Triumph" in 1924. Played Lt. Gerald Hugh Butterworth in "Forty Winks" in 1925. Played Jack Moreland in "The Road to Yesterday" in 1925. Played Wally Gay in "Steel Preferred" in 1925. Played Spud in "The Midshipman" in 1925. Played Tom Kirby in "The Last Frontier" in 1926. Played Jim Burgess in "Jim, the Conqueror" in 1926. Played Feodor, A Volga Boatman in "The Volga Boatman" in 1926. Played Vic Donovan in "Dress Parade" in 1927. Played W. Daingerfield Phelps III in "Two Arabian Knights" in 1927. Played Simon Of Cyrene in "The King of Kings" in 1927. Played Captain Hal Winslow in "The Yankee Clipper" in 1927. Played Jerry Tanner in "Wolves of the Air" in 1927. Played Pete Smith in "The Cop" in 1928. Played Jimmy Bradley in "The Night Flyer" in 1928. Played Blondy in "Skyscraper" in 1928. Played Husky in "Power" in 1928. Played Bill (The Boy) in "High Voltage" in 1929. Played William Calhoun in "The Leatherneck" in 1929. Played Bill Taylor in "The Flying Fool" in 1929. Played Terry Culver in "His First Command" in 1929. Played Count Karl Von Arnim in "Lady of the Pavements" in 1929. Played himself in "Screen Snapshots Series 9, No. 13" in 1930. Played himself in "The Voice of Hollywood No. 12" in 1930. Played William Boyd in "Screen Snapshots Series 10, No. 5" in 1930. Played Bill Holbrook in "The Painted Desert" in 1931. Played Baltimore in "Suicide Fleet" in 1931. Played Sergeant Bill Thatcher in "Beyond Victory" in 1931. Played Alan Beckwith in "The Big Gamble" in 1931. Played Jim Parker in "Men of America" in 1932. Played Buck Gannon in "Carnival Boat" in 1932. Played Skipper in "Lucky Devils" in 1933. Played Dan Manton in "Flaming Gold" in 1933. Played Joe in "Emergency Call" in 1933. Played Lars Christensen in "Port of Lost Dreams" in 1934. Played Steve Morris in "Cheaters" in 1934. Played Hop-Along Cassidy in "Hop-a-long Cassidy" in 1935. Played Dan Morgan in "Racing Luck" in 1935. Played Bill Hop-Along Cassidy in "Bar 20 Rides Again" in 1935. Played Hopalong Cassidy in "Trail Dust" in 1936. Played Hopalong Cassidy in "Three on the Trail" in 1936. Played Hopalong Cassidy in "Call of the Prairie" in 1936. Played Hopalong Cassidy in "Heart of the West" in 1936. Played Jim Thornton in "Burning Gold" in 1936. Played Bob Woods in "Federal Agent" in 1936. Played Hopalong Cassidy in "Hopalong Cassidy Returns" in 1936. Played Hopalong Cassidy in "Hills of Old Wyoming" in 1937. Played Hopalong Cassidy in "Borderland" in 1937. Played Hopalong Cassidy in "Hopalong Rides Again" in 1937. Played Hopalong Cassidy in "North of the Rio Grande" in 1937. Played Hopalong Cassidy in "Texas Trail" in 1937. Played Hopalong Cassidy in "Partners of the Plains" in 1938. Played Hopalong Cassidy in "Heart of Arizona" in 1938. Played Hopalong Cassidy in "Bar 20 Justice" in 1938. Played Hopalong Cassidy in "The Frontiersmen" in 1938. Played Hopalong Cassidy in "Pride of the West" in 1938. Played Hopalong Cassidy in "Cassidy of Bar 20" in 1938. Played himself in "Personality Parade" in 1938. Played Hopalong Cassidy in "In Old Mexico" in 1938. Played Himself, Horse Show Attendee in "Screen Snapshots Series 18, No. 9" in 1939. Performed in "Land of Liberty" in 1939. Played Hopalong Cassidy in "Range War" in 1939. Played Hopalong Cassidy in "Renegade Trail" in 1939. Played Hopalong Cassidy in "Law of the Pampas" in 1939. Played Hopalong Cassidy in "Silver on the Sage" in 1939. Played Hopalong Cassidy in "Sunset Trail" in 1939. Played Himself - On Paramount Western Set in "Screen Snapshots: Seeing Hollywood" in 1940. Played Hopalong Cassidy in "Three Men from Texas" in 1940. Played Hopalong Cassidy in "Stagecoach War" in 1940. Played Hopalong Cassidy in "Hidden Gold" in 1940. Played Hopalong Cassidy in "The Showdown" in 1940. Played Hopalong Cassidy in "Santa Fe Marshal" in 1940. Played Hopalong Cassidy in "Border Vigilantes" in 1941. Played William Hopalong Cassidy in "Twilight on the Trail" in 1941. Played Hopalong Cassidy in "Wide Open Town" in 1941. Played Hopalong Cassidy in "Outlaws of the Desert" in 1941. Played Hopalong Cassidy in "In Old Colorado" in 1941. Played Hopalong Cassidy in "Pirates on Horseback" in 1941. Played Hopalong Cassidy in "Riders of the Timberline" in 1941. Played Hopalong Cassidy in "Doomed Caravan" in 1941. Played Hopalong Cassidy posing as Tex Riley in "Stick to Your Guns" in 1941. Played Hopalong Cassidy in "Secrets of the Wasteland" in 1941. Played Hopalong Cassidy in "Lost Canyon" in 1942. Played Hopalong Cassidy in "Undercover Man" in 1942. Played Hopalong Cassidy in "False Colors" in 1943. Played Hopalong Cassidy in "Leather Burners" in 1943. Played Hopalong Cassidy in "Bar 20" in 1943. Played Hopalong Cassidy in "Border Patrol" in 1943. Played Hopalong Cassidy in "Riders of the Deadline" in 1943. Played Hopalong Cassidy in "Hoppy Serves a Writ" in 1943. Played Hopalong Cassidy in "Colt Comrades" in 1943. Played Hopalong Cassidy in "Mystery Man" in 1944. Played Hopalong Cassidy in "Lumberjack" in 1944. Played Hopalong Cassidy in "Texas Masquerade" in 1944. Played Hopalong Cassidy in "Forty Thieves" in 1944. Played Hopalong Cassidy in "Unexpected Guest" in 1947. Played Hopalong Cassidy in "The Marauders" in 1947. Played Hopalong Cassidy in "Dangerous Venture" in 1947. Played himself in "Screen Snapshots Series 27, No. 1: Hollywood Cowboys" in 1947. Played Hopalong Cassidy in "False Paradise" in 1948. Played Hopalong Cassidy in "Silent Conflict" in 1948. Played Hopalong Cassidy in "Sinister Journey" in 1948. Played Himself - Actor in "Texaco Star Theater" in 1948. Played Hopalong Cassidy in "Borrowed Trouble" in 1948. Played Hopalong Cassidy in "Strange Gamble" in 1948. Played Hopalong Cassidy in "Three on a Trail" in 1950. Played Hopalong Cassidy in "Heart of the West" in 1950. Played Hopalong Cassidy in "Bar 20 Rides Again" in 1950. Played Hopalong Cassidy in "Danger Trail" in 1951. Played Himself - Audience Member in "The 23th Annual Academy Awards" in 1951. Played Hopalong Cassidy in "Prairie Vengeance" in 1951. Played himself in "Screen Snapshots: Hopalong in Hoppy Land" in 1951. Played Hopalong Cassidy in "Hopalong Cassidy" in 1952. Played Hopalong Cassidy in "Law of the Trigger" in 1952. Played Bill Hopalong Cassidy in "Hopalong Cassidy" in 1952. Played Marshal Hopalong Cassidy in "Hopalong Cassidy" in 1952. Played Hopalong Cassidy in "The Greatest Show on Earth" in 1952. Played Sheriff Hopalong Cassidy in "Hopalong Cassidy" in 1952. Played Hopalong Cassidy posing as John Smith in "Hopalong Cassidy" in 1952. Played himself in "Screen Snapshots: Out West in Hollywood" in 1953. Played Hopalong Cassidy in "Wide Open Town" in 1953. Played Himself - Parade Rider in "Tournament of Roses" in 1954. Played Hopalong Cassidy in "Stage Coach War" in 1954. Played himself in "Screen Snapshots: Hollywood Bronc Busters" in 1955. Played Jack Moreland in "Silents Please" in 1960. Played himself in "Hollywood Without Make-Up" in 1963. Played Hopalong Cassidy in "Meanwhile, Back at the Ranch" in 1976. Played himself in "Biography" in 1987. Performed in "The West That Never Was" in 1987. Played himself in "The Best of Gleason 3" in 1989. Played himself in "L.A. Confidential" in 1997. Performed in "Golden Saddles, Silver Spurs" in 2000. Played Narrator of Smokey Bear in "50 Greatest TV Animals" in 2003. Performed in "Spisok korabley" in 2008.
Paul Sorvino played Phil Cerreta on Law & Order.
Actor Ally Walker played Dr. Stanton on the Law and Order SVU.
Joseph Donohue has: Played The Crook in "The Battler" in 1916. Played Teague in "The Daring of Diana" in 1916. Played Big V Riot Squad in "Slips and Slackers" in 1917. Played Det. Cassidy in "Within the Law" in 1917. Played Jowett in "The World for Sale" in 1918. Performed in "The Song and the Sergeant" in 1918. Played Undetermined Role in "Over the Hill to the Poorhouse" in 1920. Played An Expressman in "Bachelor Apartments" in 1921. Played Little Arthur in "Twenty Dollars a Week" in 1924. Performed in "In a Music Shoppe" in 1928.
Leslie Hendrix played Dr. Elizabeth Rodgers in 142 episodes of Law and Order, 104 episodes of Law and Order Criminal Intent, 1 episode of Law and Order: Trial by Jury, and the Law and Order movie 'Exiled'.
One of the best was Lorraine Toussaint who played defense attorney, Shambala Green, on 7 episodes of Law and Order.
Actor Steven Hill played the character District Attorney Adam Schiff in 229 episodes of the original Law and Order series, and one episode of Law and Order: SVU.