Steven Universe/Transformers: Heroes United

Steven Universe/Transformers: Heroes United is an crossover TV special.

Characters

 * Steven Universe (Zach Callison)
 * Garnet (Estelle)
 * Amethyst (Michaela Dietz)
 * Pearl (Deedee Magno Hall)
 * Optimus Prime (Peter Cellun)
 * Chromia (Grey DeLisle)
 * Jetfire (Troy Baker)
 * Bumblebee (Will Firedle)
 * Bulkhead (Kevin Michael Richardson)
 * Warpath (Jamieson Price)
 * Prowl (Alan Tudky)
 * Arcee (Sumalee Montano)
 * Elita-One (April Steward)
 * Ironhide (Keith Szarabajka)
 * Jazz (Phil LaMarr)
 * Sideswipe (Darren Criss)
 * Sunstreaker (Rino Romano)
 * Megatron (Frank Welker)
 * Starscream (Steven Blum)
 * Thundercracker (Sam Riegel)
 * Skywarp (Tom Kenny)
 * Shockwave (David Sobolov)
 * Lugnut (David Kaye)
 * Smokejumper (Corey Burton)
 * Soundwave (Isaac C. Singleton, Jr.)
 * Knock Out (Voiced by Daren North)
 * Knock Out (Voiced by Daren North)