The pair is the first of a long line of players scheduled to visit the Seminoles over the next two months as the recruitng process begins to gain steam.
Brown, a 6-foot-4, 238-pounder, received a home visit from FSU coach Bobby Bowden earlier this week, as reported by TheTerritory.
Brown said he was impressed by the Seminoles' veteran coach, saying "he made a very good imperssion."
Brown's Beddingfield High School team was eliminated from the state playoffs last weekend. Brown had 12 tackles and three sacks in the game in addition to three pass receptions for 70 yards.
Brown is a four-star player who wants to play defense in college.
Brown is being recruited by FSU recruiting coordinator John Lilly.
Bright, a five-star performer, has established himself as perhaps the best defensive lineman in the country.
However, the 6-foot-2, 315-pound standout did not complete his high school season as he was dismissed from the team for violating team rules.
Still, Harriton head coach Harold Smith told SchoolSports.com that he remained firmly behind Bright and "I'm still going to stick by him and make sure he makes all the right decisions..."
Bright has received more than 60 scholarship offers and was selected to Army All-American game in San Antonio, Tex.
Bright has indicated he would like to play in a warm-weather climate, which would bode well for the Seminoles. He also has made an official visit to Purdue, where his older brother, Gene, plays football. He's a redshirt freshman for the Boilermakers.
The two siblings have had a few discussions about playing together on the same defensive line.
"We have talked about, it would be real nice to play with my brother," Callahan Bright said.
"Gene has told me himself to take my visits and make sure I make the right choice, so that is what I'm doing."
Bright has been enamored with Miami since childhood -- he once listed the Hurricanes as his favorite but has since dropped UM. Still, he compares his approach to former UM defensive tackle Warren Sapp.
"Warren's real quick for a big guy like me," Bright said. "Plus I like his attitude and the way he plays the game. He really gets after it."
Bright is being recruited by FSU assistant coach Odell Haggins.