Fireman O'Hara is one of the parents who came to Charlie Calvin's classroom in uniform to talk on Career Day.
Characters: Scott Calvin/Santa Claus | Charlie Calvin | Laura Miller | Neil Miller | Bernard | Det. Nunzio | Miss Daniels | Judy | Mr. Whittle | Susan Perry | Judy (waitress) | Bobby | Principal Compton | Dr. Pete Novos | Judge G. Whelan | Officer Malone | Fireman O'Hara | Carol Newman-Calvin/Mrs. Claus | Jack Frost | Lucy Miller | Curtis | Abby | Mother Nature | Father Time | Easter Bunny | Cupid | Tooth Fairy | Sandman | Tracy | Toy Santa | Toy Soldiers | Bud Newman | Sylvia Newman | Dr. Hismus | Trish | Glenda | Buddy Calvin | Comet
Objects: Total Tank