Movie: Top Gun
Character A: Maverick ("I feel the need...")
Character A & B: Maverick & Goose ("...the need for speed!")
Actors:
Actor A: Tom Cruise plays the role of Maverick
Actor B: Anthony Edwards plays the role of Goose

Bonus Quote:
Movie: Top Gun
Character A: Maverick ("Tower, this is Ghost Rider requesting a flyby.")
Character C: Air Boss Johnson ("Negative, Ghost Rider, the pattern is full.")
Actors:
Actor A: Tom Cruise plays the role of Maverick
Actor C: Duke Stroud plays the role of Air Boss Johnson