After Omnis takes control of the turtle van, Raphael says "Shredder's got control of it, bail out!" in Leonardo's voice.
At the end when everyone is eating pizza and hears a threat, Master Splinter says "get ready" in Leonardo's voice.
When the turtles prepare to use suction cups to climb the building, a third turtle standing next to Raphael and Donatello wearing a red bandana with the D initial on belt speaks using Donatello's voice.