Costumes are ordered by alternate number. These costume are included with the retail and digital versions of USFIV that cost $39.99, the DLC version for SSFIV and SSFIVAE that costs $14.99 does not include these costumes.
List of costumes:
Ryu alternate 1 0:00
Ryu alternate 2 0:14
Ryu alternate 3 0:26
Ken alternate 1 0:37
Ken alternate 2 0:49
Ken alternate 3 1:01
E.Honda alternate 1 1:13
E.Honda alternate 2 1:25
E.Honda alternate 3 1:37
Ibuki alternate 1 1:49
Ibuki alternate 2 2:00
Makoto alternate 1 2:11
Makoto alternate 2 2:22
Dudley alternate 1 2:33
Dudley alternate 2 2:43
Seth alternate 1 2:54
Seth alternate 2 3:06
Seth alternate 3 3:17
Gouken alternate 1 3:30
Gouken alternate 2 3:42
Gouken alternate 3 3:53
Akuma alternate 1 4:05
Akuma alternate 2 4:17
Akuma alternate 3 4:30
Gen alternate 1 4:42
Gen alternate 2 4:53
Gen alternate 3 5:05
Dan alternate 1 5:17
Dan alternate 2 5:28
Dan alternate 3 5:40
Sakura alternate 1 5:52
Sakura alternate 2 6:04
Sakura alternate 3 6:16
Oni alternate 1 6:27
Oni alternate 2 6:40
Yun alternate 1 6:51
Yun alternate 2 7:03
Juri alternate 1 7:15
Juri alternate 2 7:25
Chun-Li alternate 1 7:37
Chun-Li alternate 2 7:48
Chun-Li alternate 3 8:00
Dhalsim alternate 1 8:12
Dhalsim alternate 2 8:24
Dhalsim alternate 3 8:36
Abel alternate 1 8:47
Abel alternate 2 8:59
Abel alternate 3 9:11
C.Viper alternate 1 9:23
C.Viper alternate 2 9:35
C.Viper alternate 3 9:47
M.Bison alternate 1 9:58
M.Bison alternate 2 10:10
M.bison alternate 3 10:21
Sagat alternate 1 10:33
Sagat alternate 2 10:45
Sagat alternate 3 10:56
Cammy alternate 1 11:08
Cammy alternate 2 11:19
Cammy alternate 3 11:31
Dee Jay alternate 1 11:42
Dee Jay alternate 2 11:53
Cody alternate 1 12:05
Cody alternate 2 12:16
Guy alternate 1 12:27
Guy alternate 2 12:37
Hakan alternate 1 12:48
Hakan alternate 2 12:58
Yang alternate 1 13:09
Yang alternate 2 13:20
Evil Ryu alternate 1 13:32
Evil Ryu alternate 2 13:43
Guile alternate 1 13:53
Guile alternate 2 14:05
Guile alternate 3 14:16
Blanka alternate 1 14:28
Blanka alternate 2 14:39
Blanka alternate 3 14:51
Zangief alternate 1 15:02
Zangief alternate 2 15:14
Zangief alternate 3 15:26
Rufus alternate 1 15:37
Rufus alternate 2 15:49
Rufus alternate 3 16:00
El Fuerte alternate 1 16:12
El Fuerte alternate 2 16:24
El Fuerte alternate 3 16:35
Vega alternate 1 16:47
Vega alternate 2 16:58
Vega alternate 3 17:10
Balrog alternate 1 17:22
Balrog alternate 2 17:33
Balrog alternate 3 17:45
Fei Long alternate 1 17:56
Fei Long alternate 2 18:08
Fei Long alternate 3 18:20
T.Hawk alternate 1 18:31
T.Hawk alternate 2 18:43
Adon alternate 1 18:55
Adon alternate 2 19:05
Rose alternate 1 19:15
Rose alternate 2 19:27
Rose alternate 3 19:38

Enable annotations to see what costume packs the costumes are from.