The Earth Day Special is a television special revolving around Earth Day that aired on ABC on April 22, 1990. Sponsored by Time Warner, the special featured an all-star cast addressing concerns about global warming, deforestation, and other environmental ills.
| Actor | Role |
|---|---|
 Dan AykroydVic's Buddy | Vic's Buddy |
 Candice BergenMurphy Brown | Murphy Brown |
 James BrolinDoctor | Doctor |
 Downtown Julie BrownSelf | Self |
 Jeff BergmanBugs Bunny / Porky Pig / Tweety (voice) | Bugs Bunny / Porky Pig / Tweety (voice) |
 Chevy ChaseVic's Buddy | Vic's Buddy |
 Kevin CostnerBartender | Bartender |
 Rodney DangerfieldVinny Boombatz | Vinny Boombatz |
 Geena DavisKim | Kim |
 Dana DelanyDoctor | Doctor |
 Danny DeVitoVic | Vic |
 Michael DouglasSelf | Self |
 Jane FondaHellen | Hellen |
 Morgan FreemanWalter Samson | Walter Samson |
 Will SmithFresh Prince | Fresh Prince |
 Neil Patrick HarrisDoogie Howser | Doogie Howser |
 Heavy DSelf | Self |
 Dustin HoffmanEvery Lawyer | Every Lawyer |
 Ice-TSelf | Self |
 Magic JohnsonSelf | Self |
 Quincy JonesSelf | Self |
 Michael KeatonCharles McIntyre | Charles McIntyre |
 Christopher ReidKid | Kid |
 Christopher MartinPlay | Play |
 Christopher LloydEmmett Brown | Emmett Brown |
 Jack LemmonCoach Stewart | Coach Stewart |
 Melanie MayronSelf | Self |
 Bette MidlerMother Earth | Mother Earth |
 Dennis MillerWeekend Update Anchor | Weekend Update Anchor |
 Rick MoranisVic's Buddy | Vic's Buddy |