We don't have a biography for Joshua yet. Hang in there, or go ahead and contribute one.
Appearances
Adventure Time
Guest cast, played by Kent Osborne
- Episode 1x10: Memories of Boom Boom Mountain (May 3, 2010)
- Episode 2x08: Crystals Have Power (Nov 29, 2010)
- Episode 3x25: Dad's Dungeon (Feb 6, 2012)
- Episode 5x41: The Pit (Nov 18, 2013)
- Episode 6x16: Joshua & Margaret Investigations (Aug 14, 2014)
- Episode 8x08: Islands Part 2: Whipple the Happy Dragon (Jan 30, 2017)
- Episode 9x01: Orb (Apr 21, 2017)
- Episode 9x10: Abstract (Jul 17, 2017)