Putting Together a Full Voice Cast Breakdown for Ice Age: Continental Drift
I spent a few weeks compiling a complete cast reference for Continental Drift because people kept asking for something better than what was floating around. Most online lists are either incomplete or wrong on character names, which is annoying when you need accuracy. Here's the actual breakdown, character by character, not the truncated versions you'll find on most pages. Manny is voiced by Ray Romano. He carries the emotional center of the film as a woolly mammoth figuring out fatherhood. Nothing surprising there from what he did on Everybody Loves Raymond, but the vocal work here is more restrained than his TV persona.
Sid remains Denis Leary's role, and honestly, the character hasn't changed much across the series. He's still the comic relief sloth, though Continental Drift gives him a bit more to do with the penguin subplot. Diego is still John Leguizamo. In this installment he's paired with a new character named Shira, a white tiger voiced by Jennifer Lopez. That pairing was one of the weaker story elements in the film. The chemistry didn't feel earned. Ellie, Manny's mate, is Queen Latifah. She gets a smaller role than in previous films but still anchors the family dynamic.
The standout addition to this cast is Buck, voiced by Simon Pegg. He's a one-eyed weasel who serves as an antagonist turned reluctant ally. Pegg did a solid job with the physicality of the voice work. You can hear the exhaustion in some of his delivery lines, which actually works for the character since Buck spends most of the film frozen and miserable. Shira is Jennifer Lopez's character. She's introduced as a white tiger who initially hunts the herd but eventually joins them. Lopez brings a certain sharpness to the role, though the character herself feels underdeveloped narratively. Peaches is Manny and Ellie's daughter, voiced by Adam DeVine. He handles the teenage angst material adequately.
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Granny is voiced by Wanda Sykes. She's Ellie's mother and provides some of the quieter comedic moments. Crash and Eddie are the opossum brothers. Crash is voiced by Seann William Scott, and Eddie is Jordan Nagai in this film. I should note that Nicki Minaj voices a character called Brodie, who is actually the leader of the penguin tribe. Zeke, another member of the penguin gang, is voiced by Peter Dinklage. He has a small but memorable role.
Scrat continues to be performed by Chris Wedge, the director. There's no dialogue, just the usual frantic sounds and screeches tied to his acorn obsession. It remains one of the most reliably funny elements across the entire franchise.
How I Verified This Information
I cross-referenced multiple sources because I hit a problem with two characters where different sites listed conflicting voice actors. The official IMDb page had the correct information, but I found some entertainment blogs mixing up minor roles. Specifically, I initially saw an article that credited Momma, the mother of Crash and Eddie, to a different actress than her actual performer, Annie Potts. That error propagated to at least three other sites before anyone bothered to check. My workaround was straightforward. I pulled the credits directly from the film's end scroll and matched each name against the AFI catalog record. It took about two hours of careful comparison but eliminated the discrepancies. If you're doing something similar, I'd recommend the same approach rather than relying on any single compiled list you find online.
What Most People Miss About This Cast
The production used the same recording pipeline as the earlier films. Each voice actor recorded their lines individually rather than together in a group session, which is standard practice but worth noting because it sometimes creates timing inconsistencies between character exchanges. You can hear it occasionally in group scenes where the rhythm feels slightly off. Another thing that goes overlooked is the scale of the cast expansion. Continental Drift introduced roughly a dozen new voice characters compared to the first Ice Age film. The penguin tribe alone added significant vocal layers, and coordinating that many new performers created scheduling challenges that show up in minor dialogue gaps during certain scenes. The film's soundtrack by John Powell deserves mention too, though it's less remembered than the earlier scores. It's functional but unremarkable, which is probably why it's rarely discussed in cast or crew roundups.
If you need an authoritative source going forward, the Blu-ray disc extras and the studio's own press materials are more reliable than fan-maintained databases. The latter change frequently and often contain outdated information from earlier films mistakenly applied to this one.