In season 2 episode 3 "Aquamansion" Vince refers to Alan as John when they meet to discuss Vince's involvement with Aquaman.
Alan personally likes Vince for the role of Aquaman and was willing to give him $12.5 million for the sequel, but they had a falling out due to his breaking the promise he made to Vince to accommodate the schedule change that would allow Vince to do his dream movie project, Medellin. This led to a contract stalemate.
Vince did not show up to a business breakfast meeting with Alan, so Alan fired Vince and replaced him with Jake Gyllenhaal in the sequel to Aquaman.
In season 5, Ari tees off against Alan in a golf match with Alan's "pro" Phil Mickelson and Bob Ryan, attempting to gamble Vince into Alan's newly acquired project "Smoke Jumpers." After a clear victory for Alan, he loudly rants to Ari about how much he hates Ari and Vince, giving himself a heart attack, from which he later dies.
- Season Two: Aquamansion
- Season Three: Crash and Burn, Three's Company, Sorry, Ari
- Season Five: ReDOMption, Gotta Look Up to Get Down