Ingrid Newkirk and Bill Maher have appeared together in 1 film in 2007. Every shared film with year, roles and gross, plus who else each works with most.
| Year | Film | Box office |
|---|---|---|
| 2007 | I Am an Animal |
Ingrid Newkirk also often with: Alex Pacheco (2), Bruce Friedrich (1), Chris DeRose (1), Greg Avery (1), Jerry Vlasak (1)
Bill Maher also often with: Bill Maher (9), George W. Bush (3), Bill Clinton (2), Charlton Heston (2), Dennis Hopper (2)