O'Callaghan is one of the Tube Operators at Odd Squad Precinct 13579. He is played by David Webster.
Appearances[]
Season 1
- "Odd Outbreak"
- "Trials and Tubulations"
- "Oscar The Couch"
- "Moustache Confidential" (cameo; still image)
Season 3
- "Welcome to Odd Squad" (in reused footage)
Shorts
- "The O Song" (cameo; still image/mentioned)