Meg Ryan (b. 1961) is a Bit Actor in this, her third movie. Tim Robbins (b. 1958), today a big star, is a pilot named Merlin in his sixth movie. No need to blog about Meg Ryan or Tim Robbins, but it is interesting to see them in smaller roles, and how well they bring their characters to life.
Did you ever hear of Whip Hubley (b. 1957)? Whip has 52 titles on IMDb, and could almost be Mel Gibson's double. He was another pilot (or maybe a RIO) named Hollywood. Whip started out in St. Elmo's Fire in 1985, and you can find him starring in Russkies (1987) as the Russian. He also appears in Coneheads (1993) and Species (1995), plus a bunch of TV work.
We also see some of the tech advisers getting small parts in Top Gun. Peter Pettigrew is apparently a real life pilot with the call sign "Viper" and perhaps is the source of Tom Skerritt's (b. 1933) character's name. T. J. Cassidy plays himself in Top Gun, a real life admiral and one of the military advisers. This is the only film for both of them.
Top Gun is not a bad film and it is in my collection. Watch it again!