Philip Solomon as Craig / Warpspeed (voice)

Noël Wells as Kelsey / Bug Battler / Mortimor / Serena's Friend (voice)

H Michael Croner as JP / Kraken Kid / Bryan / Todd / Flag Kid / Serena's Friend (voice)

Vico Ortiz as Serena (voice)

Kimberly Hébert Gregory as Nicole (voice)

Byron Marc Newsome as Duane (voice)

Lucia Cunningham as Jessica (voice)

Phil LaMarr as Bernard / Teach / Waterballoon Mike (voice)

Jeff Trammell as James / Gibson / Cannonball (voice)

Jolie Hoang-Rappaport as Hannah (voice)

Zehra Fazal as Gala / Shannon the Scout / Tattoo (voice)

Ben Levin as Bobby / Man on Bike / Tony / Jameolas (voice)

Matt Burnett as Frog Master / Pokey / Roger / Monkey Kid (voice)

Jessica McKenna as Handlebarb (voice)

Gunnar Sizemore as Jason / Kah / Boom (voice)

Andree Vermeulen as Eliza / Andy (voice)

Dana Davis as Kit (voice)

Najja Porter as Kristenandra / Nessie / Cammy (voice)

Analesa Fisher as The Timekeeper (voice)

Terrence Hardy Jr. as Harry / Norman / Ankles (voice)

Ashleigh Crystal Hairston as Renee / Wren (voice)

Karen Fukuhara as Alexis (voice)