Jenifer Lewis played Professor Clayton in one season and Dean Davenport in another season.

https://i.postimg.cc/05WHYT0z/1.jpg

This lady (Troy Beyer) played a girl Dwayne hooked up with during homecoming then played Whitley’s stepmother, Monica.

https://i.postimg.cc/28192002/2.jpg

Robert Guillaume played Dean Winston, who wouldn’t let Ron graduate. Then in Season 6 he was Kim’s medical professor, Professor Murphy.

https://i.postimg.cc/yY2Q505B/3.jpg

This lady (Josephine Premice) was Ms. Abernathy, Whitley’s boss in Season 5, then in Season 6 she was Dwayne and Whitley’s landlord. A few episodes later she was the French professor of Charmaine, Gina and Terrell when Charmaine and Terrell were cheating.

https://i.postimg.cc/W1rWPhLZ/4.jpg

This guy (Edafe Blackmon) was Gina’s abusive boyfriend, Deion, in Season 5. Then in Season 6 he played a French tutor (in the same episode that they recycled Ms Abernathy/the landlord). He was Deion again later in the season.

https://i.postimg.cc/BvBmXkvQ/5.jpg

Dominic Hoffman played Kent Suje in Season 2 and then came back later and started playing Julian in Season 3.

https://i.postimg.cc/cC3x2mbp/7.jpg

And this guy (Michael Ralph) played the fire marshal, a random guy at Whitley’s office, a member of Ron’s band, and finally a wig wearing Jamaican who was Kim’s lab partner turned boyfriend/fiancé. He also played Jalissa's date (https://i.postimg.cc/qRTkQVJV/8.jpg) in the episode "Love Thy Neighbor".

https://i.postimg.cc/fbNHWDDr/6.jpg