By JIMMY BRIGGS, SHOWBUSINESS REPORTER Published: 22:59 EDT, 10 August 2026 | Updated: 23:38 EDT, 10 August 2026 Dominic Purcell has revealed his wild new tattoo. The Prison Break star recently shared a photo on Instagram showing his newly inked back, with the word 'RIFF' in giant font. The 56-year-old actor explained in the comments that the tattoo was a tribute to the Sydney suburb of Penrith, where he grew up. 'Them that know. Penrith. The RIFF. NSW AUSTRALIA. 70's – 80's. Always proud of what made me,' Dominic wrote. Many of Dom's celebrity friends and family immediately took to the comments section to share their thoughts on the…