Old Acquaintance

Will Arnett

BoJack Horseman / Butterscotch Horseman (voice)

Aaron Paul

Todd Chavez / AA Bird / Donkey Kid / Skippy (voice)

Alison Brie

Diane Nguyen / Vincent Adultman / Kevin / Samantha The Food Critic / Olivia / Joelle Clark / Otter / Cow Waitress / Sarah Lynn's Assistant / Ship Co-Captain / Golden Snowflake Announcer / Nurse / Waitress / Cow Waitress / Announcer (voice)

Amy Sedaris

Princess Carolyn / Sharona (voice)

Paul F. Tompkins

Mr. Peanutbutter / Marv / Virgil Van Cleef / Prescott / Andrew Garfield / Sandro / Dog Valet / Underwater Man / Concerned Man / Janitor / Bartholomew Scagsworth / Sloth Lawyer / Blimp Co-Pilot / Abortion Doctor / George Tickle / Giant Chocolate Oscar Guy / Actor #2 / Bird / Willie Wesleyan (voice)

Kristin Chenoweth

Vanessa Gekko (voice)

Rachel Bloom

Laura / Katie Rabitowitz (voice)

Lorraine Bracco

Dr. Janet (voice)

Adam Conover

Bradley Hitler-Smith / Mr. Peanutbutter's Nephews (voice)

Raphael Bob-Waksberg

Charley Witherspoon (voice)

Ben Schwartz

Rutabaga Rabitowitz (voice)

'Weird Al' Yankovic

Captain Peanutbutter (voice)

Angela Bassett

Ana Spanakopita (voice)

Kristen Schaal

Sarah Lynn (voice)

Diedrich Bader

Judah Mannowdog (voice)