After his retirement as a player, Johns signed deals with the Nine Network and Sony Music Entertainment. He appeared on "The Footy Show" and as a commentator on Nine's broadcasts of rugby league matches. He has recorded a DVD titled "All of Me", released in June 2004, featuring skits by Reg Reagan and Trent the flight attendant. Since then he has released a follow up entitled "Blood, Sweat and Beers" and also features on The Footy Show's 'Best Of' DVD collection from 1994-2002. In 2004, as Reg Reagan, Johns recorded a song called "Am I Ever Gonna See the Biff Again?" sung to the tune of The Angels' 1977 hit "Am I Ever Gonna See Your Face Again?". The song is a humorous lamentation of the decline of onfield violence in professional rugby league. Johns was indefinitely stood down from his position on the Nine Network in May 2009 after the airing of the Four Corners program. He was subsequently replaced by Phil Gould. He was asked by Channel 9 to make a comeback to commentary later in the season but Johns declined. Towards the end of 2009, Johns turned down a $600,000-a-year contract with Channel 9 in favour of starting up his own production company alongside John Singleton. In 2010, Johns signed with rival network Channel Seven and launched a new family-friendly, NRL/entertainment show on 25 March at 7:30pm in NSW and Queensland. After one season, the show was discontinued. In 2012, Johns joined Fox Sports (Australia) as part of their rugby league coverage. He is the host of his own show "Sunday Night with Matty Johns". In 2004, Johns released Reg Reagan's 'This Is My Life' through Pan Macmillan. In March 2011 Johns joined Triple M Sydney's breakfast show "The Grill Team"  introducing a number of character impersonations including "Bruce", the effeminate producer for Triple M's sister station 2DayFM's breakfast team Kyle and Jackie O; the crude coal-mining magnate (and owner of the Newcastle Knights) Nathan Tinkler; and the rugby league greats Andrew Johns, Brad Fittler and Darren Lockyer as the "Future Immortals Gone Nuts". His last day in the Grill Team was on 7 December 2018.