Sayonara is a small, clear and fast audio player for Linux written in C++, supported by the Qt framework. It uses GStreamer as audio backend.
Media Player Classic
Media Player Classic Home Cinema (mpc-hc) existimatur a multis instrumentis quintessentialis ludio ludius pro Fenestra desktop. Media Player Classic Qute Theatrum (mpc-qt) intendit exprimere pleraque interfacii et functionis mpc-hc dum libmpv utens ut video ludere pro DirectShow.
Gnome Connections
A remote desktop client for the GNOME desktop environment
QMPlay2
QMPlay2 lusor video et audio. Omnes formas FFmpeg, libmodplug (including J2B et SFX) ludere potest. Etiam sustinet Audio CD, lima rudis, Rayman 2 musicam et chiptunas. Continet pasco YouTube et MyFreeMP3.
Pellicula Monad
Movie Monad is a free and simple to use video player made with Haskell.
Julius
Kaffeine is a media player. What makes it different from the others is its excellent support of digital TV (DVB). Kaffeine has user-friendly interface, so that even first time users can start immediately playing their movies: from DVD (including DVD menus, titles, chapters, etc.), VCD, or a file.
Haruna
Haruna is an open source video player built with Qt/QML on top of libmpv.
Pragha
Pragha is a Lightweight Music Player for GNU/Linux, based on Gtk, sqlite, and completely written in C, constructed to be fast, light, and simultaneously tries to be complete without obstructing the daily work. 😉
Videos
Also known as Totem, Videos is a movie player designed for GNOME.
GMusicBrowser
A customizable open-source jukebox for large collections