S3E24 · Une Fête Monstrueuse

Eden Sher

Star Butterfly (voice)

Adam McArthur

Marco Diaz (voice)

Alan Tudyk

Ludo (voice) / King River Butterfly (voice)

Jenny Slate

Pony Head (voice)

Rider Strong

Tom Lucitor (voice)

Amy Sedaris

Mina Loveberry (voice)

Dana Davis

Kelly (voice)

Jessica Walter

Meteora Heinous (voice)

Juliana Hansen

Princess Spiderbite (voice)

Bobby Miller

Slime (voice)

Eric Bauza

Spider with a Top Hat / Additional Voices (voice)

Jeff Bennett

Gemini / Additional Voices (voice)

Mark Gagliardi

Prince Larry Kelpbottom / Additional Voices (voice)

Grey DeLisle

Bird Monster / Additional Voices (voice)

Daron Nefcy

Squirrel Monster / Additional Voices (voice)