All 63 actors in both Mad About You and The Practice
63 actors have appeared in both Mad About You and The Practice, across 343 episodes. The most-credited is Frank Birney, The Waiter in Mad About You and Judge Warren West in The Practice.
| Actor | In Mad About You | In The Practice | Eps | Eps |
|---|---|---|---|---|
| Frank Birney | The Waiter | Judge Warren West | 1 | 14 |
| Paul Dooley | Gus Stemple | Judge Philip Swackheim | 1 | 8 |
| Susan Blommaert | Miss Grundy, Rita | Judge Rudy Fox | 2 | 7 |
| Debra Mooney | Sister Dorothea | Judge P. Spindle | 1 | 7 |
| Edward Asner | Zigmund "Ziggy" Klarik | Judge Marcus Winnaker, Judge Matlin Pratt | 3 | 4 |
| Ernie Sabella | Maurice | Attorney Harland Bassett | 1 | 4 |
| Gates McFadden | Allison Rourke | Judge Emily Harrison | 4 | 1 |
| Steven Gilborn | Professor Tomassi | A.D.A. Gavin Bullock | 1 | 6 |
| Tyrees Allen | Bobby, Party Guest | A.D.A. Mark Campbell, A.D.A. Curtis Simmons | 3 | 5 |
| Lisa Edelstein | Lynne Stoddard | Diane Ward | 1 | 2 |
| Lou Cutell | Eddie | Adelstein | 2 | 1 |
| Alison Martin | Muriel | Judy Blair | 3 | 1 |
| Albert Owens | The Cat | Atty. Jack Roberts | 1 | 1 |
| Alex Rocco | Mark Slotkin | Dr. Melnick | 1 | 1 |
| Nancy Lenehan | Dr. Wallach | Nurse MacKenzie | 1 | 1 |
| Robert Curtis Brown | The Lawyer | Attorney John Wicker, Scott Simpson | 1 | 2 |
| Stephen Tobolowsky | Principal Hocksacker | Clyde Burrows | 1 | 1 |
| Steven Anderson | Ricky Wrongstag | Dr. Emerick, Dr. Barry Jacob | 1 | 3 |
| Alan Wilder | Registrar #1 | Dr. Gerry Pyle, Walter Rowland | 1 | 2 |
| George D. Wallace | The Projectionist | Judge Andrew Wood | 1 | 2 |
| Allan Wasserman | The Lawyer | James Keplar | 1 | 1 |
| Bonita Friedericy | Bonita | Sandra Poole | 1 | 1 |
| Jack Shearer | Manny Gantz | Mr. Johnson | 1 | 1 |
| Jean St. James | The Mother | Foreman | 1 | 1 |
| Jeff Cahill | Keanu the Cabbie | Eddie Larson | 1 | 1 |
| Melinda McGraw | Cheryl Gendelman | Marcie Bartos | 1 | 1 |
| Stacey Travis | Dawn | Lisa Astin | 1 | 1 |
| Vasili Bogazianos | The Security Agent | A.D.A. Coffee | 1 | 1 |
| Vic Polizos | The Truck Driver | Detective Wes Pegler | 1 | 1 |
| Christian Clemenson | Jared | Barry Wall | 2 | 1 |
| Michael Fairman | Conductor | Governor's Council Richmond, School Board President Harold Shaw | 1 | 2 |
| Caroline Aaron | Trish Dawson | Delores Keplar | 1 | 1 |
| Carolyn Mignini | The Bank Manager | Mary Lennon | 1 | 1 |
| Gareth Williams | Mikey | Patirck Emerson | 1 | 1 |
| Julius Tennon | Officer #1 | Detective Louden | 1 | 1 |
| Willie Garson | Randall | D.A. Frank Shea | 1 | 2 |
| Ajgie Kirkland | Male Teacher | Guard | 1 | 1 |
| Donna Pieroni | The Masseuse | Milli Trevalli | 1 | 1 |
| Earl Billings | The Security Guard | Judge Thomas Lawrence | 1 | 1 |
| Helen Geller | Pirate Maiden | Foreperson | 1 | 1 |
| Kelly Perine | Man in Line | Teddy Maynard | 1 | 1 |
| Michael Leopard | Passenger | Detective Simon | 1 | 1 |
| Nick Jameson | Bruno Mir | Dr. Tippett | 1 | 1 |
| Nick Toth | Kinko's Customer | Judge Wayne Morris | 1 | 1 |
| Richard Roat | Phillip | Dr. Munson | 1 | 1 |
| Shirley Prestia | The Tourist | Attorney Abby Smythe | 1 | 1 |
| Jim Lau | Ng Lieu Cho | Dr. Ming Hyang, Paul Ioki | 1 | 2 |
| Christopher Darga | Akiba the Cameraman | Officer | 1 | 1 |
| Daryl Keith Roach | The Photographer | Testifying Police Officer | 1 | 1 |
| David Dunard | Dan the Cop | Judge in Rydell Hearing | 2 | 1 |
| Fred Sanders | Pet Store Owner | Roland Hoffstra | 1 | 1 |
| Marcelo Tubert | The Subway Passenger | Darryl Stanton | 1 | 1 |
| Alan Charof | Cousin Herb Buchman | Boston Cabbie | 1 | 1 |
| Matt Kaminsky | Steve the Waiter | Reporter No. 1 | 1 | 1 |
| Patricia Place | Annoyed Passenger | Mary Burlington | 1 | 1 |
| Aaron Lustig | The Neighbor | Attorney Michael King | 1 | 1 |
| Lance E. Nichols | Dr. Eckstein | Evidence Room Officer | 1 | 1 |
| Paul Eiding | Herbert | Mr. Liston | 1 | 1 |
| Phyllis Lyons | Darla | Cynthia Stevenson | 1 | 1 |
| Tohoru Masamune | Anesthesiologist | Technician | 1 | 1 |
| Darlene Kardon | Svetlana Poszinsky | Mildred the Psychologist | 1 | 1 |
| Harper Roisman | The Gas Attendant | Judge Samuel Colon | 1 | 1 |
| John Capodice | Bill | Joe Jacobs | 1 | 1 |
← Mad About You × The Practice
Cast data from TVmaze, licensed CC BY-SA 4.0.