Double Trouble Bad Chemistry (1984–1985) Online
- Original Title :
- Bad Chemistry
- Genre :
- TV Episode / Comedy
- Year :
- 1984–1985
- Directror :
- John Bowab
- Cast :
- Jean Sagal,Liz Sagal,Donnelly Rhodes
- Writer :
- David W. Duclon,Kimberly Hill
- Type :
- TV Episode
- Time :
- 30min
- Rating :
- 6.4/10
Kate takes Allison's place in the chemistry lab so Allison can go on a date, but messes up the assignment, so they break into the school at night to fix things.
| Episode cast overview: | |||
 | Jean Sagal | - | Kate Foster |
| Liz Sagal | - | Allison Foster |
 | Donnelly Rhodes | - | Art Foster |
 | Patricia Richardson | - | Beth McConnell (as Pat Richardson) |
 | Steven Peterman | - | Mr. Wayler |
| Evonne Kezios | - | Naomi |
| Jimmy Baron | - | Brad |
| John P. Navin Jr. | - | Miles |