Bill Hader Flint Lockwood / FLDSMDFR (voice) Anna Faris Sam Sparks (voice) James Caan Tim Lockwood (voice) Neil Patrick Harris Steve the Monkey (voice) Andy Samberg Brent McHale (voice) Mr. T Officer Earl Devereaux (voice) Bruce Campbell Mayor Shelbourne (voice) Khamani Griffin Cal Devereaux (voice) Benjamin Bratt Manny (voice) Al Roker Patrick Patrickson (voice) Lauren Graham Fran Lockwood (voice) Will Forte Joe Towne (voice) Peter Siragusa Rufus (voice) Neil Flynn Weather News Network Producer (voice) Liz Cackowski Flint's Teacher (voice) Isabella Acres Additional Voices (voice) Lori Alan Additional Voices (voice) Shane Baumel Additional Voices (voice) Bobb'e J. Thompson Additional Voices (voice) Bob Bergen Additional Voices (voice) Cody Cameron Additional Voices (voice) John Cygan Additional Voices (voice) Paul Eiding Additional Voices (voice) Jess Harnell Additional Voices (voice) Gary A. Hecker Additional Voices (voice) Phil Lord Additional Voices (voice) Sherry Lynn Additional Voices (voice) Danny Mann Additional Voices (voice) Mona Marshall Additional Voices (voice) Mickie McGowan Additional Voices (voice) Christopher Miller Additional Voices (voice) Laraine Newman Additional Voices (voice) Jan Rabson Additional Voices (voice) Grace Rolek Additional Voices (voice) Jeremy Shada Additional Voices (voice) Melissa Sturm Additional Voices (voice) Ariel Winter Additional Voices (voice)