Ariel Winter's mom wants to drag the entire cast of "Modern Family" into a custody war ... trying to force them on the stand and tell the judge she's not a terrible mother.
Chrystal Workman wants a small village of witnesses to testify, including Ed O'Neill, Julie Bowen, Sofia Vergara, Jesse Tyler Ferguson, Angela Gould and Diane Rodriguez.
Workman also wants ABC Network Prez Paul Lee and show producer Steve Levitan.
In all, Workman wants to call 83 witnesses.
And get this ... she doesn't have a lawyer so she would be grilling them herself.
If it happens ... Ariel will turn 18 before the trial is over. Thing is ... the judge has pretty much made it clear ... ain't gonna happen.