Wander Over Yonder (2013)

S01E39 The Rider

Title: The Rider Plot: Sylvia's former companion, Rider (voiced by Will Arnett), reenters her life, prompting Wander to question his own place as Sylvia's partner. As Rider's charming yet mischievous nature shines through, Wander finds himself contemplating whether the daring Rider is a more suitable ally for Sylvia than he is.