Phineas and Ferb/The Lion King

Cast

 * Phineas as Young Simba
 * Teenage Phineas ("Act Your Age") as Adult Simba
 * Isabella as Young Nala
 * Teenage Isabella ("Act Your Age") as Adult Nala
 * Mr. Kat (from Kid vs. Kat) as Timon
 * Zim (from Invader Zim) as Pumbaa
 * Grechen as Young Kiara
 * Teenage Gretchen ("Act Your Age") as Adult Kiara
 * Ferb as Young Kovu
 * Teenage Ferb ("Act Your Age") as Adult Kovu
 * Dr. Doofenshmirtz as Scar
 * Mandy as Shenzi
 * Thaddeus as Banzai
 * Thor as Ed
 * Lawrence as Mufasa
 * Linda as Sarabi
 * Vanessa as Sarafina
 * Carl as Zazu
 * Major Monogram as Rafiki
 * Professor Poofenplotz as Zira
 * Norm as Nuka
 * Candace as Young Vitani
 * Adult Candace ("Phineas and Ferb's Quantum Boogaloo") as Adult Vitani