The following is a partial list of actors and actresses who have appeared in the DCAU and have some relationship to each other.
| Actor/Actress | DCAU Role(s) | Relationship
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| David Barrera | Hawk #2 (Justice League Unlimited, "Hunter's Moon") | Husband
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| Maria Canals | Shelly Sandoval (Static Shock) Hawkgirl (Static Shock, Justice League, Justice League Unlimited) Fire (Justice League Unlimited) | Wife
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| Lloyd Bochner | Mayor Hamilton Hill (Batman: The Animated Series) | Father
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| Hart Bochner | Councilman Arthur Reeves (Batman: Mask of the Phantasm) | Son
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| Matt Landers | Frankie (Batman: The Animated Series "Two-Face", "Second Chance") Gang Leader (The New Batman Adventures, "Growing Pains") Louie (Batman Beyond, "Terry's Friend Dates a Robot") | Husband
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| Murphy Cross | Grace Lamont (Batman: The Animated Series, "Two-Face") | Wife
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| Fiona Landers | Girl (Batman Beyond, "Heroes") | Daughter
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| Chad Einbinder | Various | Husband
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| Laraine Newman | Toby Raynes (Superman: The Animated Series, "Apokolips... Now!") Baby-Doll (The New Batman Adventures, "Love is a Croc" Mrs. Price (Static Shock, "Child's Play") Medusa (Justice League Unlimited, "This Little Piggy") Themis (Justice League Unlimited, "This Little Piggy") | Wife
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| Nestor Carbonell | El Diablo (Justice League Unlimited, "The Once and Future Thing Part One: Weird Western Tales") Kim Garcia (Static Shock, "Pop's Girlfriend") | Husband
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| Shannon Kenny | Sazu (Superman: The Animated Series, "Warrior Queen") Female Terrorist (Superman: The Animated Series, "World's Finest") Inque (Batman Beyond) | Wife
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| Mike Farrell | Jonathan Kent (Superman: The Animated Series, Justice League, Justice League Unlimited) | Husband
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| Shelley Fabares | Martha Kent (Superman: The Animated Series, Justice League) | Wife
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| Robert Foxworth | Emil Hamilton (Justice League Unlimited) | Husband
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| Elizabeth Montgomery | Barmaid (Batman: The Animated Series, "Showdown") | Wife
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| Scott McAfee | Willie Watt (Batman Beyond), Chris Carlyle (Batman: The Animated Series) | Brother
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| Anndi McAfee | Carrie (The New Batman Adventures) | Sister
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| Nicholas Savalas | Yanni Stavros (Batman: The Animated Series, "Fire From Olympus") Attorney (Superman: The Animated Series, "Last Son of Krypton") | Half-brother
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| Nicolette Sheridan | Darci (Static Shock, "Toys in the Hood") | Half-sister
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| Nicolette Sheridan | Darci (Static Shock, "Toys in the Hood") | Wife
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| Harry Hamlin | Anthony Romulus (Batman: The Animated Series, "Moon of the Wolf") Cameron Kaiser (Batman: The Animated Series, "Joker's Wild") | Husband
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| Pat Musick | Female Lab Technician (Batman: The Animated Series, "On Leather Wings") Flight Attendant (Batman: The Animated Series, "Terror in the Sky") Additional voice (Batman: Mask of the Phantasm) Mother (Superman: The Animated Series, "Monkey Fun") Guardian #2 (Superman: The Animated Series, "In Brightest Day...") Busybody (Batman Beyond, "Unmasked") | Mother
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| Mae Whitman | Young Lois Lane (Superman: The Animated Series, "Monkey Fun") Amy (The Zeta Project, "The River Rising") | Daughter
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| Efrem Zimbalist, Jr. | Alfred Pennyworth (Batman: TAS, The New Batman Adventures, Superman: TAS, Static Shock, Justice League) | Father
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| Stephanie Zimbalist | Janet Van Dorn (Batman: The Animated Series, "Trial") | Daughter
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