The character Roger Wilco ranked #5 in Computer Gaming World's November 1996 listing of the 15 most memorable game heroes.
There was supposed to be a reptilian "watchdog" wandering around the Garbage Barge that was supposed to chase Roger (the one picture of Roger and the creature shows them in the room with the ACME rocket), but the creature never made it to the final game.
Follows
Space Quest, Chapter 1: The Sarien Encounter (1986) (VG)
Space Quest II: Vohaul's Revenge (1987) (VG)
Followed by
Space Quest 4: Roger Wilco and the Time Rippers (1991) (VG)
Space Quest V: The Next Mutation (1993) (VG)
Space Quest VI: The Spinal Frontier (1995) (VG)