Suggestions by @charleskowalski

Danny DeVito

as Mr. Crabtree in Ned Flemkin Gets Grounded

Score: +1

Harland Williams

as Cousin Fred in Ned Flemkin Gets Grounded

Score: +1

Harland Williams

as Newton in Ned Flemkin Gets Grounded

Score: +1

Tom Hanks

as Farmer Jed in Ned Flemkin Gets Grounded

Score: 0

Debi Derryberry

as Cousin Amanda in Ned Flemkin Gets Grounded

Score: +2

Lisa Vischer

as Cousin Amanda in Ned Flemkin Gets Grounded

Score: +1

Tracey Moore

as Jo Frost in Ned Flemkin Gets Grounded

Score: +1

Carolyn Scott

as Stella Reid in Ned Flemkin Gets Grounded

Score: +1

Steve Wilkos

as Steve Wilkos in Ned Flemkin Gets Grounded

Score: +1

Andrea Martin

as Mrs. Nezzer in Ned Flemkin Gets Grounded

Score: +1

Judy Sheindlin

as Judge Judy in Ned Flemkin Gets Grounded

Score: +1

Jerry Springer

as Jerry Springer in Ned Flemkin Gets Grounded

Score: +1

Maury Povich

as Maury Povich in Ned Flemkin Gets Grounded

Score: +1

Shelley Duvall

as Gladys Gutsman in Ned Flemkin Gets Grounded

Score: +1

Steve Burns

as Mr. Burns in Ned Flemkin Gets Grounded

Score: +1

Jim Millington

as The Usual Guy in Ned Flemkin Gets Grounded

Score: +1

Mark McKinney

as Uncle Albert in Ned Flemkin Gets Grounded

Score: +1

Becky Swonke

as Amy in Ned Flemkin Gets Grounded

Score: +2

Alyson Court

as Nadine Flemkin in Ned Flemkin Gets Grounded

Score: +1

Tony Rosato

as Albert Flemkin in Ned Flemkin Gets Grounded

Score: +1