—May fortune smile upon you, mighty adventurer! Call me!, Callback wishes his buddy good luck
One of Cybertron's refugees who fled the planet to avoid its certain destruction, Callback eventually took the form of a pay phone along a stretch of lonely desert highway. Fortunately, he had a buddy who placed himself across the road.
Unicron Continuity (Animated)
- Actor: Terry Klassen (U.S.), ??? (Japanese)
After a final conversation, he watched his friend Signal Lancer run off to find his destiny among the stars, wishing him luck in accomplishing his desire.
- This character is unnamed in both the original and English versions of Cybertron; To that end, the fan-coined name Callback is used.