The Magic School Bus + Rides Again Wiki
The Magic School Bus + Rides Again Wiki

Dr. Tennelli is Ralphie's mother. She's a pediatrician, pulling that card to keep Ralphie home and in bed in "Inside Ralphie," despite his desperation to get to school. She seems to have an easygoing and playful relationship with her son, rolling her eyes at his bad jokes. She appears in "Inside Ralphie," "Going Batty," and is seen in "Rocks and Rolls." Her husband is mentioned in "Gets Eaten" and "The Good, The Bad, and The Gnocchi", and is seen briefly in a cameo in "Rocks and Rolls".


Dr. Tennelli is very much like a normal, caring mother. She does look out for her son while raising him as a single parent and also having a busy work life of her own.

She seems to be mature and is respectful towards Prof. Frizzle. She knows that Ralphie and his class go on a lot of exciting field trips, but it's not known if she knows the intensity of them, whether it's going back in time, shrinking and going inside the human body, or getting eaten. Like Ralphie, she says "Is it just me, or..." implying it runs in the family.

Appearances or mentionings

Appears in

Mentioned in


  • She is one of the few parents who doesn't appear in a Rides Again episode.
  • As Meet the Class reveals Ralphie's stepbrother, she has possibly divorced.

* Debut | ** On TV | *** In the Movie | --- School
Tennelli family
Major: RalphieDr. Tennelli (mother) • Aunt TennelliTina (cousin) • Tony (cousin) • Noodles (pet)
Minor/Mentioned: Mr. Tennelli (father) • Nonna Tennelli (grandmother) • Grandpa • Brian (uncle) • Ed (uncle) • Ralphie's stepbrother