• 
  Charles Pol

   Himself / ... (45 episodes, 2014-2016)
• 
  Brenda Grettenberger

  Self - DVM, Senior Staff Veterinarian
• 
  Diane Pol

  Self - Dr. Pol's Wife
• 
  Emily Thomas

  Self - DVM, Staff Veterinarian
• 
  Scott Whyte

  Narrator
• 
  Scott Slough

  Self - 3rd generation Dairy Farmer
• 
  Terry Anderson

  Self - Owner, Lucy the Zebra
• 
  Charlie Cutler

  Self - Owner, Cow with Mastitis

• 
  Jade Denslow

  Self - Owner, Mr. Nibbles the Rabbit
• 
  Jessica Denslow

  Self - Jade's Mother
• 
  Wendy Dove

  Owner, Star the Horse
• 
  Gary Pyles

  Self - Owner, Cow in Distress
• 
  Clyde Taylor

  Self - Owner, Calf with a Broken Leg
• 
  Robin Woodbury

  Self - Owner, Injured Chicken
• 
  Roger Ablett

  Self - Cattle Farmer

• 
  Dave Aldrich

  Self - Owner, Noel the Reindeer
• 
  Ari Rubin

  Narrator
• 
  Jan Pol

  Self - DVM
• 
  Dale Lehnert

  Self - Dairy Farmer
• 
  Marty Fox

  Self - Dairy Farmer