1953 – Born on the 18th of November in Bridgeport, Connecticut.
1984 – He debuted on network television doing a stand-up routine for The Tonight Show with Johnny Carson.
1985 – On a syndicated episode of the game show Sale of the Century, a relatively unknown Nealon is spotted as one of the friends congratulating and celebrating with champion Tim Holleran, who won everything on stage to win $166,875, including $90,000 in cash.
1986 – Saturday Night Live recruited his friend Dana Carvey, and Carvey in turn recommended Nealon.
1987-1988 – Nealon became a full-time performer in the season, and remained for nine seasons.
1991-1994 – Anchor of Weekend Update segment on "Saturday Night Live".
2005 – He appeared in an episode of Curb Your Enthusiasm, where he played himself.
2006 – On the 22nd of February, he contributed a story to the New York Times about being wiretapped by Hollywood private investigator Anthony Pellicano, who has been indicted on racketeering and conspiracy charges.