Brooke is Sid’s love interest in Ice Age: Collision Course.
Brooke is a female sloth introduced in Ice Age: Collision Course. Sid meets her while the herd is traveling through a geotopic landscape, and he quickly becomes romantically interested in her. Brooke is portrayed as cheerful, affectionate, and highly compatible with Sid’s energetic personality.
Brooke is voiced by Jessie J in the film. Her presence gives Sid a personal storyline alongside the main plot about an asteroid threatening Earth. Unlike Manny and Ellie or Diego and Shira, Sid and Brooke’s relationship develops late in the main film series, making Brooke a less familiar character for casual viewers.
Brooke is sometimes confused with Ellie, Manny’s mammoth mate, or Shira, Diego’s saber-toothed-cat mate. She is also distinct from Sid’s earlier interactions with other characters. The film ends with Brooke rejoining Sid and the herd after the asteroid crisis is resolved.