Ron Howard Director Jim Carrey Grinch Actor Jeffrey Tambor Mayor of Whoville Actor Christine Baranski Martha May Who-vier Actor Bill Irwin Lou Lou Who Actor Molly Shannon Betty Lou Who Actor Clint Howard Whobris Actor Taylor Momsen Little Cindy Lou-Who Actor Anthony Hopkins Narrator Dr. Seuss Writer Jeffrey Price Screenwriter Peter S. Seaman Screenwriter Brian Grazer Producer Todd Hallowell Executive Producer Aldric La'Auli Porter Associate Producer Louisa Velis Associate Producer David Womark Associate Producer James Horner Original Music Donald Peterman Cinematographer Dan Hanley Film Editing Mike Hill Film Editing Janet Hirshenson Casting Jane Jenkins Casting Michael Corenblith Production Design Lauren E. Polizzi Art Director Merideth Boswell Set Decoration Dan Webster Art Director Rita Ryack Costume Design Lance Anderson Makeup Artist Rick Baker Special Makeup Effects Artist John Blake Makeup Artist Fred C. Blau Jr. Makeup Artist Bill Corso Makeup Artist Zoltan Elek Makeup Artist Toni G. Makeup Department Head Joel Harlow Makeup Artist Jamie Kelman Makeup Artist Bart Mixon Makeup Artist Ve Neill Makeup Artist Alex Proctor Makeup Coordinator Gerald Quist Makeup Artist Kazuhiro Tsuji Makeup Artist Emily Ferry Property Master David MacMillan Production Sound Mixer Gail Rowell-Ryan Key Hair Stylist