Neil deGrasse Tyson
Narrator
Acting
Chris Wedge
Scrat (voice)
Acting
Karen Disher
Scratazons (voice)
Acting
John Leguizamo
Sid (voice, uncredited)
Acting
Jennifer Lopez
Shira (voice, uncredited)
Acting
Simon Pegg
Buck (voice, uncredited)
Acting
Ray Romano
Manny (voice, uncredited)
Acting
Adam Devine
Julian (voice, uncredited)
Acting