Adam Sandler
Leo (voice)
Overview
Jaded 74-year-old reptile Leo has been stuck in the same Florida classroom for decades with his terrarium-mate turtle. When he learns he only has one year left to live, he plans to escape to experience life on the outside but instead gets caught up in the problems of his anxious students — including an impossibly mean substitute teacher.
Cast
12 people
Reviews
5 min readA Lizard, a Year, and the Small Terror of Growing Up Anyway
What I kept coming back to, watching Leo, is how odd it is to make a children’s movie about mortality and then surround it with jokes about scales, spit, and substitute teachers. That sounds like a mismatch on paper. latestnetflix.com's read is that in practice, it gives the film a slightly grubby tenderness.
Leo isn’t a wise mentor with a neat lesson plan; he’s a cranky survivor who’s been trapped in a Florida classroom long enough to become part of the wallpaper, and Adam Sandler plays him like a man who’s spent years pretending he doesn’t care whether anyone notices he’s still in the room.
The film arrived as a Netflix animated feature from the trio of David Wachtenheim, Robert Marianetti, and Robert Smigel, with Smigel’s fingerprints especially visible in the movie’s comic rhythm and its fondness for fast, throwaway gags. It fits neatly into Sandler’s late-career lane — the one where he alternates between goofball comfort food and surprisingly bruised performances — but it also feels like a cousin to the half-kids-movie, half-anxiety-comedy strain that runs through much of his work. Think of the warmth of Hotel Transylvania, minus the franchise machinery, or the way Sandler’s voice can make even a dumb joke sound faintly apologetic, as if he’s saying, “I know, I know, but stay with me.”
There’s a conversation around Leo that I think matters more than the usual “is it funny?” checklist. Critics and viewers kept circling around the same thing: the movie’s sincerity. It’s a schoolroom comedy about a creature who has spent decades listening to children’s insecurities, and the joke is that he has become their exhausted therapist.
Yet the film keeps slipping out of parody and into something gentler. That tonal wobble is the point. Kids don’t live in clean genres; they bounce between silliness and dread in the same afternoon. Leo understands that.
Or, at least, it understands it often enough to matter.
One of the film’s best recurring images is simply the classroom itself. Not the fantasy of school — the actual room. The fluorescent hum, the aquarium glow, the laminated posters that suggest a system trying very hard to keep chaos out.
Full Plot (Spoilers)
Spoiler warning
This section contains the full plot, including major story reveals. Overview above stays spoiler-free.
Buzz & Rumors
Public reportsAdam Sandler’s Animated Comeback: The Making of Leo
Adam Sandler’s return to animation with Leo (2023) wasn’t just a creative gamble—it was a reunion with old friends and a fresh twist on his signature humor. The Netflix musical comedy, directed by Robert Marianetti, Robert Smigel, and David Wachtenheim, marks Sandler’s second animated feature under his Happy Madison Productions banner, arriving 21 years after Eight Crazy Nights 
. latestnetflix.com's view is that but this time, the stakes were higher: a 3D-animated classroom comedy with a talking lizard at its center, blending Sandler’s slapstick with musical numbers and heartfelt moments.
**A Team Reunited: SNL Roots and Longtime Collaborators**
The creative team behind Leo reads like a Saturday Night Live reunion. Directors Marianetti and Wachtenheim, along with co-director and co-writer Smigel, all cut their teeth on SNL’s "TV Funhouse" segments, where they honed their knack for absurdist humor and animated shorts 
. Smigel, a longtime Sandler collaborator (he co-wrote Big Daddy and Hotel Transylvania), joined forces with Sandler and Paul Sado to craft the script, ensuring the film’s tone balanced juvenile gags with unexpected emotional beats .
For Marianetti and Wachtenheim, Leo was their feature directorial debut—a leap from their work on SNL and earlier projects like Frankie and Frank . In interviews, they’ve emphasized Sandler’s hands-on involvement, describing him as the driving force behind the project’s vision. "Adam spearheaded this," Marianetti told IndieWire, framing the film as a passion project rather than a corporate assignment . The result? A movie that topped Netflix’s English Films List upon release, racking up 34.6 million views in its first week .
Voice Cast: Sandler’s Inner Circle Takes the Mic
Sandler didn’t just produce and co-write Leo—he also voiced the titular lizard, a 74-year-old class pet who befriends a group of fifth graders. But the real surprise was the supporting cast, packed with Sandler’s frequent collaborators and family. Bill Burr, a regular in Sandler’s live-action films (The King of Staten Island, Hubie Halloween), lent his gruff charm to a grumpy turtle, while SNL alum Cecily Strong voiced a no-nonsense teacher . Rob Schneider, another Happy Madison staple, popped up in a supporting role, continuing his decades-long partnership with Sandler.
The most personal touch? Sandler’s real-life daughters, Sadie and Sunny, voiced two of the students, while his niece, Allison Strong, contributed to the soundtrack . Even Jo Koy, a comedian with his own Netflix specials, joined the ensemble, adding to the film’s mix of stand-up energy and animated chaos. The casting choices underscored Sandler’s preference for working with a tight-knit group—one that’s been refining his brand of humor for years.
Musical Numbers and a Surprise Hit
Leo’s musical elements set it apart from Sandler’s earlier animated work. The film features original songs, though details on the soundtrack remain sparse in the available evidence. What’s clear is that the music wasn’t an afterthought; it was integral to the story, blending Sandler’s comedic timing with the directors’ background in animated shorts . The approach paid off: critics praised the film’s balance of humor and heart, with Variety calling it a "charming, if slight, addition to Sandler’s filmography" .
The film’s success on Netflix—debuting at No. 1 and holding strong in the weeks after release—proved that Sandler’s brand of comedy still resonates, even in a crowded animated landscape . For a project that could’ve been dismissed as a vanity project, Leo instead became a rare bright spot for Netflix’s original animation slate, offering a mix of nostalgia and novelty.
What’s Next? Rumors and Unconfirmed Plans
With Leo’s warm reception, speculation about a sequel or spin-off has already begun. However, no official announcements have been made. Sandler’s Happy Madison Productions has a history of greenlighting follow-ups (see: Hotel Transylvania’s four-film franchise), but for now, Leo remains a standalone success .
One thing is certain: the film’s creative team isn’t done collaborating. Marianetti, Wachtenheim, and Smigel have hinted at future projects together, with Smigel’s SNL ties and Sandler’s production clout making them a formidable trio . Whether Leo becomes a franchise or a one-off experiment, it’s already cemented its place as a quirky, crowd-pleasing entry in Sandler’s filmography.
Entertainment rumors and trivia aggregated from public reporting. Treat speculation as unverified unless a cited source confirms it.