John Grayson was an acrobat, married to Mary Grayson and father of Richard Grayson. Together, the three of them formed the acrobatic team The Flying Graysons that performed as part of the Haly's Circus show.
Tony Zucco sabotaged the trapeze ropes in order to convince Haly's owner to pay protection money. During their act, John and Mary Grayson fell to their deaths after the ropes snapped, leaving young Dick Grayson an orphan.
- John Grayson was voiced by Thomas F. Wilson.
- 5 Appearances of John Grayson (DCAU)
- 1 Images featuring John Grayson (DCAU)
- Quotations by or about John Grayson (DCAU)
- Character Gallery: John Grayson (DCAU)