We don't have a biography for Mailbox yet. Hang in there, or go ahead and contribute one.
Appearances
Blue's Clues & You!
Guest cast, played by Doug Murray
- Episode 1x01: Meet Josh! (Nov 11, 2019)
- Episode 1x02: Playdate with Magenta (Nov 12, 2019)
- Episode 1x03: Big News with Blue (Nov 13, 2019)
- Episode 1x04: ABC's with Blue (Nov 14, 2019)
- Episode 1x05: 123's with Blue (Nov 18, 2019)
- Episode 1x06: Sad Day with Blue (Nov 19, 2019)
- Episode 1x07: Laugh with Blue (Nov 20, 2019)
- Episode 1x08: Song Time with Blue (Nov 21, 2019)
- Episode 1x09: Getting Glasses with Magenta (Dec 13, 2019)
- Episode 1x10: Growing with Blue (Jan 10, 2020)
- Episode 1x11: Happy Birthday Blue (Feb 7, 2020)
- Episode 1x12: Story Time with Blue (Mar 6, 2020)
- Episode 1x13: The Thinking Squad (Apr 3, 2020)
- Episode 1x14: Science with Blue (May 5, 2020)
- Episode 1x15: Colors Everywhere with Blue (Jun 2, 2020)
- Episode 1x16: Pajama Party with Blue (Jun 16, 2020)
- Episode 1x17: Bluestock (Jul 14, 2020)
- Episode 2x01: Blue's Big Beat Band (Aug 19, 2020)
- Episode 2x02: Hide and Seek with Blue (Sep 16, 2020)
- Episode 2x03: Blue's Treasure Hunt (Sep 30, 2020)
- Episode 2x04: Spooky Costume Party with Blue (Oct 16, 2020)
- Episode 2x05: Thankful with Blue (Nov 6, 2020)
- Episode 2x06: Welcome to Blue's Bistro (Nov 13, 2020)
- Episode 2x07: Blue's Big Baking Show (Nov 20, 2020)
- Episode 2x08: Blue's Night Before Christmas (Dec 4, 2020)
- Episode 2x09: Sleepy Singalong With Blue (Dec 18, 2020)
- Episode 2x10: Blue's Big Dance Party (Jan 1, 2021)
- Episode 2x11: Blue's Big Imagination (Jan 22, 2021)
- Episode 2x12: What I Like About Blue (Feb 12, 2021)
- Episode 2x13: Blue's Show and Tell Surprise (Mar 5, 2021)
- Episode 2x14: Blue's Rainy Day Rainbow (Mar 12, 2021)
- Episode 2x15: Spring Is Here! (Apr 23, 2021)
- Episode 2x16: Blue's Big Neighborhood Adventure (May 21, 2021)
- Episode 2x17: Blue's Beach Bonanza (Jun 4, 2021)
- Episode 2x18: Blue's Anywhere Box Surprise (Jun 25, 2021)
- Episode 2x19: Mystery of the Missing Pies (Jul 2, 2021)
- Episode 2x20: Blue Makes a Movie with YOU! (Aug 20, 2021)
- Episode 2x21: It's YOUR Birthday! (Sep 17, 2021)
- Episode 3x01: Our New Neighbor! (Oct 1, 2021)
- Episode 3x02: The Ghost of the Living Room (Oct 18, 2021)
- Episode 3x03: Blue's Big Costume Parade (Oct 29, 2021)
- Episode 3x04: A Blue's Clues Festival of Lights (Nov 26, 2021)
- Episode 3x05: Blue's Snowy Day Surprise (Dec 6, 2021)
- Episode 3x06: Blue's Dino Clues (Jan 14, 2022)
- Episode 3x07: Building with Blue (Feb 4, 2022)
- Episode 3x08: Blue's Backyard Sports Spectacular (Feb 8, 2022)
- Episode 3x09: Blue's Mystery Present (Mar 18, 2022)
- Episode 3x10: Mailtime Mystery (Mar 18, 2022)
- Episode 3x11: Magenta's Case of the Giggles (Apr 1, 2022)
- Episode 3x12: Rainbow Puppy's Skidoo Adventure (May 13, 2022)
- Episode 3x13: Blue's Treasure of Clue Lagoon (Jun 22, 2022)
- Episode 3x14: Blue and Little Rainbow Riding Hood (Aug 5, 2022)
- Episode 3x15: Blue's Storytime with Camila (Oct 3, 2022)
- Episode 3x16: Tickety's Big Musical Morning (Oct 4, 2022)
- Episode 3x17: Something New at Blue's School (Oct 5, 2022)
- Episode 3x18: Feelin' Filipino (Oct 6, 2022)
- Episode 4x02: Into the Blueniverse (Nov 7, 2022)
- Episode 4x03: Sage and Ginger's Baby Book (Nov 8, 2022)
- Episode 4x04: Joshini the Amazing (Nov 9, 2022)
- Episode 4x05: Getting Healthy with Blue (Nov 10, 2022)
- Episode S04 Special: Blue's Big City Adventure (Nov 18, 2022)
- Episode 4x11: Night at the Blueseum (May 12, 2023)