The Legend of Po and Korra

The Legend of Po and Korra is the crossover t.v. series of Kung Fu Panda and The Legend of Korra put together.

Book 1: Air

 * Po, Shifu, Tigress, Viper, Monkey, Mantis and Crane
 * Korra, Asami Sato, Mako, Bolin, Tenzin, Pema, Jinora, Ikki, Meelo, Rohan, Lin Beifong, Hiroshi Sato, Iroh, Black Cattle, Cunning Fox, Sunrise Hawk and Charging Bison
 * SpongeBob SquarePants, Gary the Snail, Snellie the Snail, Patrick Star, Sandy Cheeks, Squidward Tentacles, Mr. Krabs, Plankton, Karen, Princess Mindy, Squilvia, Mrs. Puff and Larry the Lobster

Book 2: Spirits

 * Bumi, Kya, Chief Tonraq, Senna, Desna and Eska, President Raiko, Varrick, Zhu Li, Quan Li, Jaden, Katana and Grey Heron
 * Mr. Ping, Cheng Ru, Storming Ox, Croc, Soothsayer, Chi Su, Cheng, Constable Hu, Song and Li Shan
 * Shrek, Donkey, Fiona, Dragon, The Dronkeys, Puss in Boots, Kitty Softpaws, Humpty Dumpty, Dulcinea, Gingy, Pinocchio, The Three Blind Mice, The Three Little Pigs, The Big Bad Wolf, Pied Pipper, Doris and Mabel, Thelonious and Monsieur Hood and his Merry Men.
 * Mordecai, Rigby, Benson, Pops, Skips, Muscle Man, High Five Ghost, Thomas a.k.a. Nicholai, Margaret, Eileen and CJ

Book 3: Change

 * Kai, Suyin Beifong, Baatar, Opal, Wei and Wing, Huan, Baatar Jr., Yin, Chow, Tu, Ryu, Kuvira and Bitter Swan
 * Alex, Marty, Gloria, Melman, Skipper, Kowalski, Rico, and Private, King Julien, Maurice, Mort, Classified, Short Fuse, Eva, Corporal, Mason and Phil, Marlene, Sonya, Vitaly, Gia and Stefano
 * Cassim, Iago, Thundra, Zazu, Timon, Pumbaa, Redfeather, Mushu, Sebastian, Scuttle, Tip and Dash, Connor Kenway, Robin Hood, Little John, Lady Marian, Lady Kluck, Friar Tuck, Sir Hiss, Sheriff of Nottingham, Trigger, Nutsy John Smith Ben and Lon, Thomas and Wiggins
 * Grizz, Panda, Ice Bear, Nom Nom, Charlie and Chloe Park

Book 4: Balance

 * Firelord Izumi and Kuzon
 * Queen Elsa, Princess Anna, Kristoff, Olaf and Princess Christina
 * Hiccup, Toothless, Astrid, Stormfly, Fishlegs, Meatlug, Ruffnut and Tuffnut, Barf an Belch, Snotlout, Hookfang, Eret, Skullcrusher, Gobber The Belch, Grump, Valka and Cloudjumper
 * Kai, Zane, Cole, Jay, Lloyd Garmadon, Sensei Wu, Nya, Garmadon, Misako, P.I.X.A.L., Pythor P. Chumsworth, Fangtom, Acidicus, Skalidor, Skales, Selma and Skales Jr.

Book 1: Air

 * 1) Welcome to Republic City
 * 2) A Leaf in the Wind
 * 3) The Revelation
 * 4) The Voice in the Night
 * 5) The Spirit of Competition
 * 6) And the Winner Is...
 * 7) The Aftermath
 * 8) When Extremes Meet
 * 9) Out of the Past
 * 10) Turning the Tides
 * 11) Skeletons in the Closet
 * 12) Endgame

Book 2: Spirits

 * 1) Rebel Spirit
 * 2) The Southern Lights
 * 3) Civil Wars, Part 1
 * 4) Civil Wars, Part 2
 * 5) Peacekeepers
 * 6) The Sting
 * 7) Beginnings, Part 1
 * 8) Beginnings, Part 2
 * 9) The Guide
 * 10) A New Spiritual Age
 * 11) Night of a Thousand Stars
 * 12) Harmonic Convergence
 * 13) Darkness Falls
 * 14) Light in the Dark

Book 3: Change

 * 1) A Breath of Fresh Air
 * 2) Rebirth
 * 3) The Earth Queen
 * 4) In Harm's Way
 * 5) The Metal Clan
 * 6) Old Wounds
 * 7) Original Airbenders
 * 8) The Terror Within
 * 9) The Stakeout
 * 10) Long Live the Red Lotus
 * 11) The Ultimatum
 * 12) Enter the Void
 * 13) Venom of the Red Lotus

Book 4: Balance

 * 1) After All These Years
 * 2) Return of the Emperor
 * 3) The Great Leaders
 * 4) The Calling
 * 5) Enemy of the Living Dead
 * 6) The Battle of Righteous
 * 7) Reunion
 * 8) Remembrances
 * 9) Bonding of Love
 * 10) The Great Conqueror
 * 11) Wrath of Darkness
 * 12) Day of Tsung Lai
 * 13) The Last Stand